Health Calculators
Calculate BMI, calories, BMR, ideal weight, and pregnancy dates for free.
Baby Growth Calculator
Free baby growth calculator. Enter your baby's age, weight, and height to find their growth percentile based on WHO child growth standards. Use our free calcula
BMI Calculator
Free BMI calculator. Enter your height and weight to calculate your Body Mass Index and see whether you are underweight, normal, overweight, or obese.
BMR Calculator
Free BMR calculator. Find out how many calories your body burns at rest using the Mifflin-St Jeor or Harris-Benedict formula. Use our free calculator now.
Body Fat Calculator
Free body fat percentage calculator. Use the US Navy circumference method to estimate body fat from waist, hip, and neck measurements. Use our free calculator n
Calorie Calculator
Free TDEE calorie calculator. Find your daily calorie needs to maintain weight, lose weight, or gain muscle based on your activity level. Use our free calculato
Protein Intake Calculator
Free protein calculator. Find your daily protein target in grams based on body weight, activity level, and fitness goals — weight loss, muscle gain, or maint...
Water Intake Calculator
Free water intake calculator. Find your optimal daily hydration goal in liters and cups based on body weight, exercise, and environmental factors. Use our free
Ideal Weight Calculator
Free ideal weight calculator. Get your healthy weight range based on height and gender using Hamwi, Devine, Robinson, and Miller formulas. Use our free calculat
Macro Calculator
Free macro calculator. Get personalized daily protein, carb, and fat targets for weight loss, muscle gain, or maintenance based on TDEE. Use our free calculator
Period Calculator
Free menstrual cycle calculator. Enter your last period date and cycle length to predict your next period and track future cycle dates. Use our free calculator
Ovulation Calculator
Free ovulation calculator. Enter your last period date and average cycle length to find your fertile window, ovulation day, and peak conception days. Use our fr
Pregnancy Due Date Calculator
Free pregnancy due date calculator. Enter your last menstrual period (LMP) to calculate your estimated due date, current week, and trimester. Use our free calcu
Pregnancy Week Calculator
Free pregnancy week calculator. Enter your last menstrual period to find out how many weeks pregnant you are, your trimester, and your estimated due date.
Sleep Calculator
Free sleep calculator. Enter your wake-up time or bedtime to find the ideal sleep schedule based on 90-minute sleep cycles for better rest. Use our free calcula
Smoking Cost Calculator
Free smoking cost calculator. See the daily, monthly, yearly, and lifetime financial cost of smoking — and what you could save by quitting. Use our free calcula
Waist-to-Hip Ratio Calculator
Free WHR calculator. Measure your waist-to-hip ratio to assess cardiovascular disease risk and abdominal obesity according to WHO standards. Use our free calcul
Weight Loss Calculator
Free weight loss calculator. Enter your current weight, goal weight, and calorie deficit to find out how many weeks it will take to reach your target.
Health Calculators
Free health calculators for BMI, calories, BMR, pregnancy, and more.