Health & Fitness Calculators
Track your wellness journey with calculators for BMI, calories, macros, and fitness goals. Science-backed formulas for better health decisions.
Showing 24 of 34 calculators
Heart Rate Zone Calculator
Use our free heart rate zone calculator with the Karvonen formula to compute 5 training zones (Re...
Blood Pressure Calculator
Use our free blood pressure calculator to interpret your BP reading. Get the AHA 2017 category (N...
VO2 Max Calculator
Use our free VO2 max calculator to estimate your maximum oxygen uptake using 4 validated test met...
BMI Calculator
Calculate your Body Mass Index (BMI), check where you fall on the BMI chart, find your ideal weig...
BMR Calculator - Basal Metabolic Rate & Daily Calorie Needs
Calculate your Basal Metabolic Rate (BMR) - the number of calories your body burns at rest. Use m...
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) to know exactly how many calories you burn e...
Calorie Calculator
Calculate how many calories you should eat per day for weight loss, muscle gain, or maintenance. ...
Calories Burned Calculator
Use our free calories burned calculator to estimate calories burned during 25+ exercises and acti...
Sleep Calculator
Calculate the best times to sleep and wake up based on 90-minute sleep cycles. Find your optimal ...
Running Pace Calculator
Calculate your running pace, finish time, or distance instantly. Enter any two values to find the...
Protein Calculator
Calculate your optimal daily protein intake based on body weight, activity level, and fitness goa...
Pregnancy Calculator
Calculate your pregnancy due date, find out how many weeks pregnant you are, track your pregnancy...
Ovulation Calculator
Calculate your ovulation date, predict your fertile window, and find the best days to conceive ba...
Max Heart Rate Calculator
Use our free max heart rate calculator with 4 proven formulas (Tanaka, Fox, Gulati for women, Nes...
Macro Calculator
Calculate your daily macronutrient needs (protein, carbs, fat) based on your TDEE, body compositi...
Ideal Weight Calculator
Calculate your ideal body weight based on height, age, and gender. Our free ideal weight calculat...
Cholesterol Calculator
Use our free cholesterol calculator to analyze your lipid panel. Computes LDL via the Friedewald ...
Lean Body Mass Calculator
Use our free lean body mass (LBM) calculator with three formulas — Boer, James, and Hume — pl...
Fiber Calculator
Use our free fiber calculator to determine your daily fiber recommendation based on age, sex, and...
Fat Intake Calculator
Use our free fat intake calculator to compute your daily fat grams based on calorie needs and goa...
Muscle Mass Calculator
Use our free muscle mass calculator to estimate skeletal muscle mass and skeletal muscle mass ind...
Water Intake Calculator
Calculate your optimal daily water intake based on body weight, activity level, and climate. Get ...
Body Fat Calculator
Calculate your body fat percentage using the accurate Navy method with waist and neck measurement...
Cardiovascular Risk Calculator
Use our free cardiovascular risk calculator to estimate your 10-year risk of heart attack or stro...