All Health Calculators
Free health calculators for BMI, BMR, body fat, ideal weight, TDEE, and more. Based on WHO and medical standards.
14 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.
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.
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.
Calorie Calculator
Calculate your daily calorie needs using the Mifflin-St Jeor equation. Get personalized targets for weight loss, maintenance, and muscle gain. Free, no sign-up.
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.
Due Date Calculator
Calculate your pregnancy due date using last menstrual period, conception date, or IVF transfer date. Get trimester dates and key milestones. Free & accurate.
Height Calculator
Ideal Weight Calculator
Macro Calculator
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.
Pregnancy Calculator
Calculate your due date, current week of pregnancy, trimester, and key milestones. Based on last menstrual period or conception date. Free pregnancy tracker.
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.
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.
Waist-to-Height Ratio Calculator
Calculate your waist-to-height ratio (WHtR). A better cardiometabolic risk marker than BMI for most adults. Instant risk zones + interpretation.