Health & Fitness Calculators
Track your wellness journey with calculators for BMI, calories, macros, and fitness goals. Science-backed formulas for better health decisions.
All Health & Fitness Calculators
Showing 24 of 49 calculators
Ideal Weight Calculator
Calculate your ideal body weight based on height, age, and gender. Our free ideal weight calculat...
Wet Bulb Globe Temperature (WBGT) Calculator
Calculate Wet Bulb Globe Temperature (WBGT) — the heat stress index used by NCAA, NATA, OSHA, N...
Lean Body Mass Calculator
Use our free lean body mass (LBM) calculator with three formulas — Boer, James, and Hume — pl...
Conception Calculator
Estimate your conception date from a due date, last period (LMP), or ultrasound dating scan. Free...
Carbohydrate Calculator
Use our free carbohydrate calculator to determine your optimal daily carb intake based on body we...
Heat Index Calculator
Calculate the heat index (apparent or feels-like temperature) from air temperature and relative h...
Muscle Mass Calculator
Use our free muscle mass calculator to estimate skeletal muscle mass and skeletal muscle mass ind...
Pregnancy Weight Gain Calculator
Use our free pregnancy weight gain calculator to track healthy weight gain based on pre-pregnancy...
BAC Calculator
Calculate your estimated blood alcohol content (BAC) based on weight, gender, number of drinks, a...
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...
Caffeine Calculator
Track your daily caffeine intake from coffee, tea, and energy drinks. Calculate caffeine half-lif...
Water Intake Calculator
Calculate your optimal daily water intake based on body weight, activity level, and climate. Get ...
Body Surface Area (BSA) Calculator
Calculate Body Surface Area (BSA) in m² from height and weight using all five clinical formulas ...
Body Recomposition Calculator
Calculate your ideal calorie cycling plan for body recomposition. Get separate training day and r...
Waist to Height Ratio Calculator
Use our free waist to height ratio (WHtR) calculator to assess central obesity and cardiometaboli...
Waist Hip Ratio Calculator
Use our free waist-hip ratio (WHR) calculator to assess body fat distribution and metabolic risk....
Body Fat Calculator
Calculate your body fat percentage using the accurate Navy method with waist and neck measurement...
Blood Sugar Calculator
Use our free blood sugar calculator to convert glucose readings between mg/dL and mmol/L, estimat...
Vitamin & Mineral Calculator
Use our free vitamin and mineral calculator to look up the daily Recommended Dietary Allowance (R...
Cardiac Output Calculator
Use our free cardiac output calculator to compute heart output in L/min from heart rate and strok...
Stroke Volume Calculator
Use our free stroke volume calculator to compute SV from end-diastolic and end-systolic volumes (...
Sodium Calculator
Use our free sodium calculator to find your daily sodium limit per FDA and AHA guidelines, adjust...
Rest Time Calculator
Use our free rest time calculator to find the optimal rest period between sets based on your trai...