Health

Free online health calculators including BMI calculator, basal metabolic rate, and body fat percentage calculator.

Tools

15 tools

Calculate your BMI, see your WHO weight category, and check the healthy weight range for...

Calculate your daily recommended water intake based on weight, activity level, exercise duration, and climate....

Calculate BMR and TDEE for weight management. Supports Mifflin-St Jeor and Harris-Benedict formulas.

Estimate body fat percentage with the U.S. Navy Method using inches or centimeters, pounds or...

Plan marathon pacing from a target time or current pace, then review splits, VDOT training...

Calculate your ideal body weight based on height, gender, and frame size. Compare results from...

Practice the 4-7-8 breathing technique: 4 seconds inhale, 7 seconds hold, 8 seconds exhale. Effective...

Enter apnea count, hypopnea count, and total sleep time to calculate adult AHI severity ranges...

Review HAS-BLED bleeding risk factors in atrial fibrillation and see the total score (0-9), the...

Enter air temperature and relative humidity to estimate shaded heat index, NWS risk bands, temperature...

Estimate wind chill, air-temperature drop, frostbite risk bands, and exposed-skin caution time from temperature and...

Calculate dew point from air temperature and relative humidity, then review muggy-air comfort, saturation gap,...

Compare 1RM formulas from your lifted weight and reps, then review target loads, rep tables,...

Estimate golf calories burned from your weight, play time, and activity type. Compare practice, cart...

Convert height between feet/inches and centimeters, see meters and total inches, and review BMI-based reference...