Your Personal
Health Calculator Hub
36 free health & fitness calculators — BMI, calories, sleep, pregnancy and more. No sign-up needed.
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Body Composition
11 toolsBMI Calculator
Check if you're in a healthy weight range.
Child BMI Calculator
BMI-for-age percentile for kids aged 2–19.
Body Type Calculator
Find your somatotype: Ecto, Meso or Endo.
BMR Calculator
Calories your body burns at rest.
Body Fat Calculator
Estimate body fat % using Navy method.
Lean Body Mass
Calculate your fat-free body mass.
Ideal Weight
Find your healthy weight range.
Ponderal Index
Alternative to BMI for tall/short individuals.
Waist-to-Hip Ratio
Assess abdominal fat and health risk.
Waist-to-Height Ratio
Central obesity indicator.
Body Surface Area
Total BSA using 8 popular formulas.
Fitness & Activity
7 toolsTDEE Calculator
Total daily energy expenditure.
One Rep Max (1RM)
Estimate your max lift with a training table.
VO2 Max Calculator
Estimate your cardiovascular fitness level.
Calorie Burn
Calories burned during exercise.
Running Pace
Calculate pace, time or distance.
Heart Rate Zones
Optimize your workouts by HR zone.
Steps to Calories
Convert daily steps into calories burned.
Nutrition & Diet
9 toolsCalorie Calculator
Daily calorie needs for your goal.
Calorie Deficit
Exact calories to eat for safe weight loss.
Keto Calculator
Ideal macros for a ketogenic diet.
Intermittent Fasting
Fasting & eating windows for 16:8, OMAD & more.
Macro Calculator
Protein, carbs & fat breakdown.
Food Calorie
Calories from protein, carbs & fat.
Water Intake
Personalized daily water recommendation.
Protein Intake
Daily protein target for your goal.
Alcohol Units
Units, calories & safe limit guide.