Health & Fitness Calculators

Calculators for BMI, calories, body composition, pregnancy, macros, and other everyday health and fitness questions -- fast, free, and calculated right in your browser.

BMI Calculator

Body Mass Index with Indian guidelines.

BMR Calculator

Basal Metabolic Rate using Mifflin-St Jeor.

TDEE Calculator

Total Daily Energy Expenditure by activity.

PFT Calculator

Physical Fitness Test grading for Army, NDA & CDS.

CFT Calculator

Combat Fitness Test grade for defence personnel.

Sleep Time Calculator

Calculate 90-min sleep cycles.

Body Fat Calculator

Estimate body fat percentage.

Calorie Calculator

Daily calorie needs for weight goals.

Ovulation Calculator

Estimate ovulation, fertile window & next period.

Body Fat % Calculator (YMCA)

Estimate body fat from weight & waist (YMCA method).

Pregnancy Due Date Calculator

Due date from LMP using Naegele's Rule.

Period Calculator

Predict your next period, cycle phase & fertile window.

Calorie Deficit Calculator

Daily deficit target & time to reach your goal weight.

Macro Calculator

Protein, carb & fat grams for your calorie goal.

Weight Gain Calculator

Calorie surplus & timeline to reach a target weight gain.

Water Intake Calculator

Daily water intake from your weight, activity & climate.

Ideal Weight Calculator

Find your ideal body weight by formula.

Protein Intake Calculator

Daily protein needs by activity & goal.

Pace Calculator

Running pace & finish time calculator.

One Rep Max Calculator

Estimate your 1RM from a submaximal set.

BAC Calculator

Estimate blood alcohol concentration.

VO2 Max Calculator

Estimate your VO2 max from heart rate or walk test.

Body Surface Area Calculator

Calculate BSA in m² for adults.

Lean Body Mass Calculator

Estimate LBM, fat mass & body fat %.

Heart Rate Calculator

Max heart rate and training zones by age.

Calories Burned Walking Calculator

Calories burned from weight, pace & duration.

Calories Burned Running Calculator

Calories burned from weight, pace & duration.

Calories Burned Cycling Calculator

Calories burned from weight, intensity & duration.

Target Heart Rate Calculator

Karvonen-formula target heart rate zone.

Child Height Predictor

Predict adult height from parents' heights.

Baby Growth Calculator

Weight-for-age percentile estimate.

BMR + TDEE Calculator

BMR and TDEE together in one flow.

Body Frame Size Calculator

Small, medium or large frame from wrist & height.

Shoe Size Converter

Convert shoe sizes between US, UK, EU & CM.

Bra Size Converter

Convert bra sizes between US, UK, EU & International.

Swimming Pace Calculator

Pace per 100m/100yd and per pool length.

Daily Fiber Calculator

Recommended fiber intake by age & gender.

Marathon Time Predictor

Predict marathon finish time from a recent race.

Daily Carb Intake Calculator

Recommended daily carbs from calories & carb %.

Daily Fat Intake Calculator

Recommended daily fat from calories & fat %.

Pet Food Calculator

Daily food amount for a dog or cat.

Cycling Power Calculator

Estimated watts needed to hold a speed.

Healthy Weight Range Calculator

BMI-based healthy weight range for your height.

Resting Heart Rate Calculator

Classify your resting pulse by age and gender.

Ideal Sleep Duration Calculator

Recommended sleep hours by age group.