All Health Calculators
Free health calculators for BMI, BMR, body fat, ideal weight, TDEE, and more. Based on WHO and medical standards.
8 free calculators
BMI Calculator
Calculate your BMI instantly with WHO standards. Find your weight category and healthy weight range. Includes tips. Free bmi calculator, no sign-up required.
Calculate →BMR Calculator
Calculate basal metabolic rate using the Mifflin-St Jeor formula. Find how many calories you burn at rest. Free bmr calculator online, no sign-up required.
Calculate →Body Fat Calculator
Estimate body fat percentage via US Navy and BMI methods. Enter height, weight, and measurements for results. Free body fat percentage calculator, no sign-up.
Calculate →Calorie Deficit Calculator
Find your daily calorie deficit for safe weight loss. Our calorie deficit calculator is based on TDEE with nutritionist targets. Free, no sign-up required.
Calculate →Ideal Weight Calculator
Find ideal weight using 4 medical formulas: Robinson, Miller, Devine, and Hamwi. Get healthy weight range by height and sex. Free, no sign-up required.
Calculate →Ovulation Calculator
Find ovulation date and fertile window based on last period and cycle length. Track conception with accurate predictions. Free ovulation calculator, no sign-up.
Calculate →Sleep Calculator
Find ideal bedtime or wake-up time based on 90-minute REM sleep cycles. Use our sleep calculator to wake up refreshed. Free online tool, no sign-up required.
Calculate →TDEE Calculator
Calculate TDEE based on BMR and activity level. Find exact daily calorie needs for weight loss or gain. Free tdee calculator online, no sign-up required.
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