Track • Train • Thrive

Health Calculators

Estimate macros, track progress, and plan routines with calculators built for everyday wellness — from fitness benchmarks to nutrition and recovery.

All health calculators

Browse every wellness tool on AgentCalc, then pin the ones you want to revisit during your routine.

View saved

Focused topic hubs

Use these crawlable subcategory pages to jump into the most coherent clusters within this category.

Explore 112 Health calculators

Browse all 112 health calculators in plain HTML for easier crawling and direct navigation.

3D Printer Resin Post-Cure Dose Calculator (UV Exposure Time & Rotations)

Calculate UV post-cure exposure time and turntable rotations from a resin’s target dose (J/cm²), measured intensity (mW/cm²), coverage, and thermal limits.

3D Printer Resin Post-Cure Dose Calculator (UV Exposure Time & Rotations) health calculator DLP FAQ HDT

A1C to Average Glucose Converter | HbA1c eAG Calculator

Convert HbA1c to estimated average glucose, or average glucose back to A1C, using the ADAG relationship. Learn how to read the result and when it can mislead.

A1C to Average Glucose Converter | HbA1c eAG Calculator health calculator 1 mmol ADAG CGM

Absolute Neutrophil Count Calculator | ANC Formula, Ranges, and Infection Risk Guide

Calculate absolute neutrophil count (ANC) from a CBC differential, review the ANC formula, understand normal and low ranges, and learn how to interpret infection-risk categories.

ANC calculator absolute neutrophil count neutropenia CBC differential infection risk

Adult ADHD Self-Report Scale (ASRS) Calculator

Complete the short ASRS questionnaire to screen for adult attention deficit hyperactivity disorder.

ASRS ADHD self assessment adult ADHD questionnaire ADHD adult

After-School Activity Carpool Load Balancer

Distribute after-school driving duties across families, calculate fuel and time costs, and plan backup ride coverage.

after school carpool calculator youth sports driving planner family carpool fairness tool MPG SUV

Antidepressant Taper Schedule Calculator

Create a gradual antidepressant taper schedule. Enter your current dose, goal dose, taper duration, and adjustment interval to generate a step-down plan to r...

antidepressant taper schedule calculator psychiatry dose reduction medication taper planner 10–60 mg for some SSRIs 7 days

Army Combat Fitness Test (ACFT) Score Calculator

Estimate your Army Combat Fitness Test (ACFT) score from six event performances. See per-event points, total score, and pass/fail based on 60-point minimums.

ACFT calculator Army combat fitness test score military fitness 0–59 seconds 1110 seconds

Asbestos Fiber Exposure Calculator – Estimate Cumulative Fiber-Year...

Use this asbestos exposure calculator to estimate cumulative dose in fiber-years from concentration, hours, days, and years. For educational purposes only; n...

asbestos exposure calculator fiber years mesothelioma risk 240 days per year 8 hours per day

AUDIT Alcohol Use Disorder Score Calculator

Calculate your AUDIT alcohol use disorder score from the 10 WHO questions, screen your drinking risk level, and learn what the result means. Not a diagnosis.

AUDIT score calculator alcohol use disorder test drinking risk assessment AUDIT CAGE

Bacon Lover’s Heartbreak Calculator – How Much Does Bacon Really Love You Back?

Discover the real cost of your bacon obsession. Calculate your bacon calories and the exercise needed to burn them off in a humorous, insightful way.

bacon calculator bacon calories bacon health effects bacon consumption calculator exercise offset bacon

Badminton Court Setup Cost Calculator - Facility Planning

Calculate the total cost of building and maintaining a badminton court facility. Plan facility development, equipment purchases, tournament budgeting, and operational costs.

badminton court cost facility setup tournament planning badminton equipment court construction

Basic Reproduction Number Calculator - Estimate Disease Spread

Calculate the basic reproduction number (R0) for an infectious disease using contact rate, transmission probability, and infectious period.

R0 calculator epidemiology reproduction number disease spread basic calculate

Benzene Exposure Risk Calculator - Estimate Inhalation Hazard

Estimate daily benzene intake from air concentration, breathing rate, and body weight to evaluate health risk.

benzene risk calculator inhalation exposure hazard quotient DNA OSHA

Blood Donation Eligibility Calculator - Can You Donate?

Check basic whole blood donation eligibility using age, weight, hemoglobin (g/dL), and weeks since your last donation. Includes criteria, formula notes, and an example.

blood donation eligibility calculator donate blood requirements hemoglobin check 56 days HIV

Blood Sugar Converter (Glucose): mg/dL ↔ mmol/L

Convert glucose between mg/dL and mmol/L with accurate rounding. Includes formulas, worked examples, and a quick common conversions table.

blood sugar converter glucose units mg/dL to mmol/L mmol to mg/dL diabetes tool

Blood Type Compatibility Calculator - Safe Transfusion Checker

Check if donor and recipient blood types are compatible for transfusion using ABO and Rh rules. Understand antigen-antibody interactions and learn how universal donors and recipients work.

blood type compatibility calculator transfusion match ABO Rh universal donor A is on A's allowed list

Blood Volume Calculator - Estimate Total Circulating Volume

Estimate your total blood volume using the Nadler formula based on height, weight, and sex.

blood volume calculator nadler formula total blood volume circulating blood a fixed mL

Blue Light Melatonin Suppression Calculator (Screen Brightness & Time)

Estimate melatonin suppression from evening screen exposure using brightness (lux), viewing time (minutes), and blue-light filter reduction. Includes formula, examples, and practical guidance.

blue light calculator melatonin suppression screen exposure lux circadian rhythm

Body Frame Size Calculator | Estimate Small, Medium, or Large Build

Estimate body frame size from height and wrist circumference using male or female threshold sets. Includes measurement guidance, formulas, worked examples, interpretation tips, and an optional mini-game.

body frame size calculator wrist circumference small medium large frame height wrist ratio BMI

Body Surface Area (BSA) Calculator (Mosteller & Du Bois)

Estimate body surface area (BSA) using the Mosteller or Du Bois formula. Enter height and weight in metric or imperial units, and optionally calculate a dose in mg/m².

body surface area calculator BSA calculator Mosteller formula Du Bois formula mg/m2 dosing

Body Type Calculator – Find Your Ectomorph, Mesomorph, or Endomorph...

Use this body type calculator to see if you lean ectomorph, mesomorph, or endomorph and learn what that means for your training and nutrition approach.

body type calculator somatotype ectomorph mesomorph endomorph

Boxing Calories Burned Calculator (MET-Based Estimate)

Estimate calories burned from boxing using METs. Enter weight, duration, and intensity (bag work to sparring/competition) for a quick kcal estimate.

boxing calorie calculator boxing energy expenditure sparring calories 10 min light + 30 min moderate 12 MET

Breath Holding Training Safety Calculator - Progressive Apnea Training

Calculate safe progression for breath-holding and static apnea training. Determine safe time limits based on fitness level, hypoxia/hypercapnia thresholds, and recovery protocols.

apnea training breath holding static apnea hypoxia hypercapnia

Caffeine Tapering Schedule Calculator

Create a gradual caffeine reduction plan to avoid withdrawal. Enter current intake, goal, and days to taper.

caffeine taper calculator coffee withdrawal plan reduce caffeine gradually 21 days avoid

Cardiac Output Calculator - Estimate Heart Pumping Capacity

Determine cardiac output in liters per minute from heart rate and stroke volume, review worked examples, and explore related heart health calculators.

cardiac output calculator heart stroke volume cardiology MAP MRI

Child Calorie Needs Calculator - Daily Energy Requirements

Estimate daily calorie needs for children ages 2–18 based on age, sex, and activity level. Uses dietary guidelines to help parents and caregivers plan balanc...

child calorie needs kids calorie calculator daily calories for children activity age

Circadian Light Exposure Planner (Melanopic Lux & Phase Shift Estimate)

Plan morning and evening light exposure and estimate a simplified circadian phase shift using melanopic exposure (lux·min) and a melanopic ratio.

circadian light calculator melanopic lux phase shift estimator FAQ Melanopic Lux & Phase Shift Estimate

Continuous Glucose Monitor vs. Fingerstick Cost Comparison Calculator

Use this CGM vs. fingerstick cost calculator to estimate total and monthly costs over your chosen time horizon, including sensors, strips, meters, transmitte...

continuous glucose monitor calculator CGM vs fingerstick cost $ per lancet $ per sensor $ per strip

Contrast Agent Dosage Calculator | Estimate CT Contrast Volume

Estimate iodinated contrast volume in milliliters from patient weight, iodine dose rate, and contrast concentration for CT and angiography planning.

contrast agent dosage calculator CT contrast volume calculator radiology dosage planner iodinated contrast dose angiography

Corrected Calcium Calculator (Albumin Adjustment) | Payne Formula

Calculate corrected calcium (mg/dL) from measured serum calcium and albumin using the Payne formula. Includes how to use, formula, worked examples, interpretation ranges, clinical context, limitations, and an optional mini-game.

corrected calcium calculator albumin adjustment serum calcium payne formula hypocalcemia

Creatinine Clearance Calculator - Estimate Kidney Filtration

Compute creatinine clearance using the Cockcroft-Gault equation to evaluate kidney function.

creatinine clearance kidney function Cockcroft-Gault CKD CrCl

CVSS Vulnerability Score Calculator - Evaluate Security Risks

Calculate the CVSS v3 base score for security vulnerabilities by selecting metrics like attack vector, complexity, and impact.

cvss calculator vulnerability score security risk assessment 0.56 each CVE

Cycling Calorie Burn Calculator - Estimate Calories Burned While Riding

Use this cycling calorie burn calculator to estimate calories burned from your ride using distance, time, speed-based MET values, and body weight in metric or imperial units.

cycling calorie calculator bike calories cycling energy expenditure calories burned biking cycling MET calculator

DASH Diet Sodium Planner | Daily Sodium Budget by Meal

Use this DASH Diet Sodium Planner to split a daily sodium target into practical per-meal goals. Learn how the formula works, what the inputs mean, and how to use the result for meal planning.

DASH diet sodium planner sodium calculator blood pressure healthy eating

Drug Pharmacokinetics & Steady-State Concentration Calculator - Blood Level Accumulation

Calculate blood concentration levels, steady-state plasma concentration, and accumulation factor for repeated drug dosing based on half-life.

pharmacokinetics calculator steady-state concentration half-life drug accumulation plasma concentration

Déjà Vu Frequency Estimator (Monthly) | Age, Sleep, Stress & Novelty

Estimate how often déjà vu experiences might occur each month using a simple model based on age, sleep habits, stress level, and exposure to novel environments.

deja vu calculator memory glitch frequency familiarity illusion 1 = very calm 10 = extremely stressed

eGFR Kidney Function Calculator (CKD-EPI 2021)

Estimate adult eGFR using the 2021 CKD-EPI race-free creatinine equation from age, serum creatinine, and sex. Educational kidney function calculator; not a substitute for medical care.

eGFR calculator kidney function estimator CKD-EPI 1.73 m² for at least three months CKD

Electric Toothbrush Head Replacement Planner

Estimate when to swap your electric toothbrush head based on brushing habits and pressure.

electric toothbrush head replacement schedule 1=light 3=heavy average pressure based

Electric vs Manual Toothbrush Cost Calculator | Compare Long-Term Brushing Costs

Use this electric vs manual toothbrush cost calculator to compare long-term brushing costs, replacement schedules, and total spending over your chosen analysis period.

electric toothbrush cost calculator manual toothbrush comparison oral care budget toothbrush replacement cost analysis

Electric Wheelchair Charging Cost Calculator

Estimate the electricity cost to charge an electric wheelchair, including cost per charge, cost per mile, and daily or monthly running costs using your local...

electric wheelchair charging cost calculator wheelchair electricity cost mobility aid energy use USD account for charger efficiency

Elliptical Calorie Burn Calculator - Stride and Resistance

Estimate calories burned on an elliptical trainer from stride length, cadence, resistance level, duration, and body weight. Includes detailed explanation of MET values.

elliptical calorie calculator stride length resistance level cardio energy expenditure MET

Employee Turnover Rate Calculator (HR Attrition %)

Calculate employee turnover rate from start headcount, end headcount, and separations. Includes formula, example, and tips to interpret results.

employee turnover rate calculator attrition HR analytics retention HR Attrition %

Ergonomic Desk Height Calculator for Sitting and Standing Workstations

Estimate ergonomic sitting or standing desk height from your body height, view the result in inches and centimeters, and use it as a practical starting point for a more comfortable workstation.

ergonomic desk height calculator ideal desk height standing desk height sitting desk height office ergonomics

Eyeglass Prescription Power Impact Calculator - Vision Strength Analysis

Compare eyeglass prescription strengths across different lenses. Calculate effective optical power, visual acuity impact, and how prescription changes affect daily activities like driving, reading, and screen use.

eyeglass prescription calculator vision correction power diopter strength astigmatism sphere cylinder axis

Fallout Shelter Radiation Dose Calculator

Project cumulative radiation dose inside a shelter after nuclear fallout using initial intensity, protection factor, decay half-life, and stay duration.

fallout shelter radiation dose calculator nuclear preparedness tool after cumulative decay

FIB-4 Liver Fibrosis Calculator | Age, AST, ALT & Platelets

Calculate a FIB-4 score from age, AST, ALT, and platelet count to estimate liver fibrosis risk with age-adjusted interpretation, a worked example, and practical follow-up guidance.

FIB4 calculator liver fibrosis score hepatitis risk ALT AST

Fluoride Intake Calculator for Water, Toothpaste, and Daily Sources

Use this fluoride intake calculator to estimate mg/day from drinking water, swallowed toothpaste, tea, supplements, and other common sources, then compare the total with age-based reference limits.

fluoride intake calculator fluoride exposure water fluoride toothpaste fluoride dental health calculator

Food Temperature Danger Zone Calculator - Keep Meals Safe

Estimate how long food can safely sit in the 40–140°F danger zone from its internal temperature, based on FDA time-and-temperature guidance.

food safety calculator temperature danger zone bacterial growth FDA FDA Food Code

Formaldehyde Exposure Risk Calculator

Estimate daily inhaled dose of formaldehyde and compare it to reference dose guidance.

formaldehyde exposure calculator indoor air quality hazard quotient air concentration body weight

Greenhouse Ventilation Calculator - Determine Proper Fan Size

Calculate the ventilation needs of your greenhouse based on its dimensions and air changes per hour. Optimize plant health with adequate airflow.

greenhouse ventilation calculator greenhouse fan size air changes per hour ACH CFM

Hand-Arm Vibration Exposure Calculator - Estimate A(8) from Multiple Tools

Estimate daily hand-arm vibration exposure A(8) from one or more tools, compare the result with common action and limit values, and see how trigger time and acceleration combine across a shift.

hand arm vibration exposure calculator vibration risk HAVS vibration exposure ISO

Health Insurance Plan Comparison Calculator for Premiums, Deductibles, Copays, and Out-of-Pocket Costs

Compare up to three health insurance plans by estimated annual cost. This calculator combines premiums, deductibles, copays, coinsurance, prescriptions, surgery assumptions, and out-of-pocket maximums for HMO, PPO, EPO, and HDHP options.

health insurance comparison health plan calculator HMO vs PPO healthcare cost calculator insurance plan comparison

Heat Index & Humidity Comfort Calculator (Feels Like Temperature)

Use this heat index and humidity comfort calculator to estimate the ‘feels like’ temperature, understand heat stress risk categories, and get practical safety recommendations based on temperature, humidity, age group, and activity level.

heat index calculator humidity comfort apparent temperature feels like temperature heat illness

Herd Immunity Vaccination Coverage Calculator

Determine the proportion of a population that must be vaccinated to achieve herd immunity given R0 and vaccine effectiveness.

herd immunity vaccination coverage calculator vaccine effectiveness COVID SARS achieve

HIIT Calorie Burn Calculator | Estimate Work and Recovery Interval Calories

Estimate calories burned in a HIIT workout by entering your body weight, interval count, work duration, recovery duration, and MET values for each phase.

HIIT calorie burn calculator interval training calories high intensity exercise energy MET calculator HIIT

Home Radon Mitigation Runtime Planner (Fan Runtime & ACH Calculator)

Estimate how long a radon mitigation fan must run to reach a target radon concentration. Uses space volume, fan airflow (CFM), infiltration (ACH), and radon entry rate to model decay and steady-state.

radon mitigation calculator radon fan runtime indoor air quality planning radon reduction time ACH

Ideal Body Weight Calculator | Devine, Hamwi, Miller, and Robinson IBW Formulas

Calculate ideal body weight using the Devine, Hamwi, Miller, and Robinson formulas. Compare IBW estimates by height and reference sex, review MathML formulas, and play an optional mini-game.

ideal body weight calculator devine formula hamwi method miller equation robinson equation

In-Flight Cosmic Radiation Calculator - Estimate Airline Passenger Dose

Estimate the ionizing radiation dose received during airplane travel using cruising altitude, flight duration, and solar activity.

air travel radiation calculator cosmic ray dose flight safety CARI FAA

Insomnia Severity Index Calculator - Evaluate Sleep Difficulties

Answer seven questions to determine your Insomnia Severity Index (ISI) score and see whether your sleep issues are mild or severe.

insomnia severity index ISI calculator sleep assessment CBT CBT-I

Insulin Bolus Calculator - Carb Counting and Correction Doses

Estimate rapid-acting insulin doses using carb counts, current blood glucose, and correction factors.

insulin bolus calculator carb ratio correction factor CGM TDD

Insulin Sensitivity Factor Calculator - Diabetes Management Aid

Estimate your insulin sensitivity factor (ISF) from total daily dose using the 1500/1700/1800 rules (mg/dL and mmol/L). Educational estimate—confirm with you...

insulin sensitivity factor ISF calculator diabetes care ISF TDD

Langmuir Adsorption Isotherm Calculator - Surface Coverage Estimation

Estimate surface coverage of adsorbed molecules using the Langmuir isotherm based on pressure or concentration.

Langmuir adsorption calculator isotherm surface science BET Brunauer-Emmett-Teller

LASIK vs Glasses & Contacts Cost Comparison Calculator

Compare lifetime costs of LASIK, PRK, SMILE surgery versus glasses and contact lenses. Calculate total cost including surgery, maintenance, insurance, and financing options.

LASIK cost calculator vision correction LASIK vs contacts refractive surgery cost eye surgery pricing

LDL Cholesterol Estimator - Friedewald Formula

Estimate your low-density lipoprotein (LDL) cholesterol using the Friedewald formula from standard lab values for total cholesterol, HDL, and triglycerides...

LDL calculator Friedewald equation cholesterol estimator AACVPR AAPA

Lightning Strike Probability Calculator - Personal Risk Estimator

Estimate the annual probability of being struck by lightning using local storm data.

lightning strike probability calculator storm risk lightning safety and mostly indoors annual

Loading Dose Calculator - Rapid Therapeutic Level

Estimate the loading dose needed to quickly achieve a target drug concentration using volume of distribution and bioavailability.

loading dose calculator pharmacology dosage therapeutic drug monitoring ABC C target

Meat Smoking Time Calculator | Estimate BBQ Cook Time and Wood Fuel

Estimate smoker hours and wood fuel for brisket, pork shoulder, ribs, chicken, or salmon based on weight and smoker temperature.

meat smoking time calculator bbq wood consumption brisket smoking hours barbecue calculator BBQ

Medication Dosage Calculator - Weight Based Guidance

Compute medication dosage using patient weight and drug concentration. Always consult a healthcare professional before use.

drug dosage calculator mg per kg medical dosing 3.5 mL or 4.0 mL BSA

Medication Half-Life Calculator - Estimate Drug Elimination

Calculate remaining medication level after a given time using half-life principles and plan dosing intervals.

medication half-life calculator pharmacokinetics drug elimination after calculate

Medication Tapering Schedule Calculator | Discussion Worksheet & Prescriber Step Visualizer

Use this medication tapering schedule calculator page as a safer discussion worksheet and prescriber step visualizer. Record questions, symptoms, appointment details, and manually entered dose steps without generating dosing advice.

medication taper worksheet prescriber taper visualizer dose discussion planner medication safety tapering schedule calculator

Metabolic Age Calculator - Compare Your BMR to Age Norms

Estimate your metabolic age by comparing your basal metabolic rate (BMR) to population averages. Enter age, gender, weight, and height to see how youthful your metabolism is.

metabolic age calculator BMR basal metabolic rate metabolism age health

MRI Quench Room Oxygen Hazard Calculator

Estimate how quickly oxygen levels fall in an MRI room during a helium quench based on vent efficiency, HVAC makeup air, and helium inventory.

MRI quench calculator helium boil-off oxygen displacement cryogen safety CSV

Navy PRT Score Calculator (Estimator) | Push-ups, Plank, 1.5-Mile Run

Estimate your U.S. Navy Physical Readiness Test score with a planning-focused calculator for push-ups, forearm plank, and the 1.5-mile run. Includes formulas, assumptions, a worked example, interpretation guidance, and an optional readiness mini-game.

navy prt calculator physical readiness test military fitness push-ups plank

Noise Exposure Calculator - Estimate Safe Listening Time

Determine how long you can safely stay in loud environments based on sound level.

noise exposure calculator safe listening time decibel 85 minus the decibel level 90 minus the decibel level

Omega-3 to Omega-6 Ratio Calculator - Balance Dietary Fats

Calculate your daily omega-3 to omega-6 intake ratio and learn why this balance is important for health.

omega 3 to omega 6 ratio calculator fatty acid balance 1 tbsp 4 - omega3Grams ALA

Orthodontic Treatment Cost & Duration Planner - Braces Calculator

Calculate total orthodontic treatment costs including braces, Invisalign, and aligners. Plan payment options, insurance coverage, and realistic treatment timelines by complexity.

braces cost calculator Invisalign cost orthodontic treatment planner teeth alignment cost dental braces pricing

Oxygen Delivery & Respiratory Support Calculator (FiO2 & ROX Index)

Estimate FiO2 by oxygen device and flow, then compute the ROX index, S/F and P/F ratios, alveolar PAO2, A-a gradient, oxygen content, and O2 cylinder runtime.

oxygen calculator FiO2 calculator ROX index calculator SpO2 FiO2 ratio PaO2 FiO2 ratio

Ozone Exposure Risk Calculator - Ambient Benchmark and Inhaled Dose

Estimate ambient ozone benchmark ratio and inhaled ozone dose from concentration, breathing rate, exposure time, and body weight.

ozone exposure calculator ambient ozone benchmark respiratory dose AQI EPA

Peak Expiratory Flow Calculator | Predicted PEF and Asthma Zones

Estimate predicted peak expiratory flow, compare it with your measured reading, and see your green, yellow, or red asthma zone. Learn how height, age, and sex affect PEF and how to interpret the result.

peak expiratory flow calculator pef calculator asthma zones lung function peak flow meter

PHQ-9 Depression Score Calculator - Mental Health Screening

Calculate your PHQ-9 depression score to understand symptom severity and discuss results with a professional.

PHQ-9 calculator depression score mental health assessment DSM PHQ

Pipe Thrust Block Calculator - Size Soil Bearing for Pressurized Pipe Bends

Estimate thrust force and thrust block bearing area for a pressurized pipe bend from diameter, bend angle, internal pressure, and allowable soil bearing pressure.

Pipe Thrust Block Calculator - Size Soil Bearing for Pressurized Pipe Bends health calculator PVC allowable allowable soil bearing q a

Pittsburgh Sleep Quality Index Calculator | Simplified PSQI Screener

Use a simplified Pittsburgh Sleep Quality Index calculator to screen recent sleep quality, estimate a PSQI-style score, and interpret when sleep concerns may need professional follow-up.

PSQI calculator Pittsburgh sleep quality index sleep quality score sleep assessment screener PSQI

Potassium Intake Calculator (mg/day) — Recommended Daily Intake by Age & Sex

Use this potassium intake calculator to estimate recommended daily potassium intake in mg/day by age and sex, then compare it with your current intake to see the difference.

potassium intake calculator recommended potassium daily potassium mg potassium requirement by age potassium RDA

Pregnancy Due Date & Gestational Age Calculator - Naegele Rule

Estimate your due date, current gestational age, and trimester using last menstrual period, conception date, or ultrasound. See how your date was calculated...

pregnancy calculator due date calculator gestational age Naegele rule pregnancy timeline

Prostate Cancer Risk Calculator - PSA and Age Assessment

Estimate prostate cancer risk using age, PSA level, and family history. Learn how screening factors combine into a risk score.

prostate cancer risk calculator PSA risk assessment MRI PSA age

QTc Interval Calculator (Bazett & Fridericia) — QT Correction

Calculate QTc from QT and RR intervals using Bazett and Fridericia formulas. Includes interpretation tips, examples, and key limitations for safer use.

QTc calculator QT interval correction Bazett formula Bazett & Fridericia ECG

Radiation Dose Calculator | Estimate Exposure per Session, Month, and Year

Estimate radiation dose from intensity, exposure time, and visit frequency. Compare per-session, monthly, and annual totals in mSv, with unit conversion, worked examples, and an optional ALARA mini-game.

radiation dose calculator exposure estimate sievert calculator mSv calculator uSv to mSv

Radiation Shielding Thickness Calculator - Attenuation Distance

Calculate the material thickness required to reduce radiation intensity using the exponential attenuation formula.

radiation shielding calculator attenuation thickness dose reduction HVL NIST

Rowing Machine Calorie Burn Calculator (Erg/Indoor Rowing)

Estimate calories burned on a rowing machine from distance, time, and body weight. See pace, 500 m split, MET level, formulas, a worked example, and an optional rowing mini-game.

rowing machine calorie calculator erg calories indoor rowing MET rowing energy expenditure 500m split calculator

Running Impact Force Calculator - Estimate Stress on Your Joints

Estimate running impact force from your weight, speed, and cadence. See peak ground reaction force in newtons and as body-weight multiples to compare training loads.

running impact force calculator joint stress estimator GPS GRF about 5–10 steps per minute

Simplified ASCVD Educational Risk Estimate

Estimate simplified educational 10-year ASCVD risk using age, cholesterol, blood pressure, smoking and diabetes inputs. Not an official clinical calculator or medical advice.

ASCVD risk calculator 10-year heart disease risk cardiovascular risk estimator ACC AHA

Skeletal Muscle Mass Index Calculator - Assess Muscularity

Estimate your skeletal muscle mass index using weight, body fat percentage, and height. Useful for athletes and fitness enthusiasts.

skeletal muscle mass index calculator SMI calculator muscle mass estimator BMI Body Mass Index

Sleep Apnea Risk Calculator | STOP-BANG Screening Tool

Estimate obstructive sleep apnea screening risk with the STOP-BANG questionnaire. Review symptoms, BMI, age, neck circumference, and a clear low, intermediate, or high risk result.

sleep apnea risk calculator STOP-BANG snoring daytime sleepiness sleep disorder

Smoking Pack-Year Calculator | Calculate Pack Years from Cigarettes Per Day

Use this smoking pack-year calculator to estimate cumulative cigarette exposure from cigarettes per day and years smoked. Includes the standard formula, examples, interpretation guidance, limitations, and an optional pack-year mini-game.

pack year calculator smoking history lung cancer risk tobacco exposure 10 cigarettes

Sports Betting Arbitrage Calculator - Risk-Free Wager Allocation

Compute stake distribution for two-outcome sports betting arbitrage opportunities using decimal odds.

sports betting arbitrage calculator surebet risk-free betting arbitrage arbitrage percentage can also be expressed as

Stair Climber Calorie Burn Calculator | Steps, Vertical Gain, and METs

Estimate stair climber calories from steps, step height, workout time, and body weight. See cadence, vertical meters climbed, and the MET used for the stair-session estimate.

stair climbing calorie calculator stepper MET stair climber energy burn stairs calories burned stair workout calculator

Standing Desk Calorie Burn Calculator | Standing vs Sitting Estimate

Estimate the extra calories burned by standing instead of sitting. Enter weight in kg and daily standing hours for a quick MET-based calorie comparison.

Standing Desk Calorie Burn Calculator | Standing vs Sitting Estimate health calculator MET MET stand − MET sit MET-based

Steps to Distance Converter (Miles & Kilometers)

Convert step count to distance in miles and kilometers using your stride length. Includes examples, stride tips, and accuracy limitations.

steps to miles steps to kilometers distance walked 0 or more FAQ

STOP-BANG Sleep Apnea Risk Calculator

Calculate a STOP-BANG score from snoring, tiredness, observed apnea, blood pressure, BMI, age, neck circumference, and sex to estimate sleep apnea screening risk.

stop bang calculator sleep apnea risk snoring assessment stop-bang score obstructive sleep apnea screening

Sunburn Risk Calculator – Estimate Safe Exposure Time Outdoors

Estimate how UV index, skin type, and sunscreen SPF affect sunburn exposure time so you can plan safer outdoor time and reduce skin damage.

sunburn risk calculator safe sun exposure UV index sunscreen CSV SPF

Thin-Walled Pressure Vessel Stress Calculator

Compute hoop and longitudinal stresses for cylindrical or spherical thin-walled pressure vessels.

thin walled pressure vessel stress calculator hoop stress cylindrical vessel ASME LNG

Tire Pressure Adjustment Calculator - Account for Temperature Changes

Calculate the recommended tire pressure based on temperature differences. Keep your tires properly inflated for safety and fuel efficiency.

tire pressure adjustment temperature tire calculator PSI change with temperature tire safety PSI

UV-C Exposure Time Calculator for Germicidal Dose Planning

Estimate UV-C exposure time from lamp power, distance, or measured intensity to reach a target germicidal dose on a surface or air path.

uvc exposure time calculator germicidal lamp dose disinfection uv calculator DNA RNA

Vaccine Cold Chain Risk Calculator - Estimate Potency Loss

Estimate potency loss and failure risk when vaccines experience temperature excursions using duration, temperature, and sensitivity.

vaccine cold chain risk calculator temperature excursion potency loss immunization storage 1 - Premain ELISA

Virtual Marathon Training Pacer - Plan Weekly Speeds

Generate a simple pacing plan for your marathon training. Enter your goal finish time and number of weeks to get recommended pace adjustments.

marathon training pacer running pace planner adjustments enter finish

Vitamin D Sunlight Exposure Calculator - Sun Minutes

Estimate how many minutes of midday sun your body needs for vitamin D based on UV index, skin type, and how much skin is exposed.

vitamin d sunlight calculator uv exposure estimator vitamin d sun exposure time sunlight exposure calculator 100 ÷ bodyExposedPct

Waist-to-Height Ratio Calculator for Screening Central Obesity Risk

Measure your waist-to-height ratio to gauge central obesity risk and compare the result with common health screening thresholds.

waist-to-height ratio WHtR screening central obesity risk abdominal obesity assessment CSV

Walking Calorie Burn Calculator – Research‑Based Energy Estimate

Estimate calories burned on your walk using distance, time and body weight. This calculator applies research‑based MET values to give an approximate energy u...

walking calories walking calorie calculator walking energy expenditure 30 min 4.3 METs

Wearable Device Battery Life Predictor

Predict how long your smartwatch or fitness band will last on a charge based on capacity and usage.

wearable battery life calculator smartwatch battery estimator GPS LTE average draw

Weight Lifting Calorie Burn Calculator | MET-Based Strength Training Estimate

Estimate calories burned in a weight lifting workout from active lifting time, body weight, and intensity using MET values.

weight lifting calories strength training calorie calculator weight training energy calories burned lifting weights MET

Wells Score for DVT Calculator | Estimate Deep Vein Thrombosis Pre-Test Probability

Calculate the Wells score for suspected deep vein thrombosis using standard clinical criteria, review the MathML formula, and understand low, moderate, and high pre-test probability categories.

Wells score calculator DVT risk assessment deep vein thrombosis probability Wells DVT score -2 points

Y-BOCS OCD Score Calculator | Yale-Brown Obsessive Compulsive Scale

Use this Y-BOCS OCD score calculator to total the 10 Yale-Brown Obsessive Compulsive Scale items, review obsession and compulsion subscores, and understand common severity ranges. Educational only, not a diagnosis.

Y-BOCS calculator OCD severity test obsessive compulsive scale Yale-Brown scale BOCS

Saved health calculators

Keep your go-to wellness tools ready for check-ins and planning.

Browse all health calculators

You haven't saved any health calculators yet. Search or browse to pin your favourites.