Health & Fitness

Calculate your Basal Metabolic Rate (BMR) using Mifflin-St Jeor, Harris-Benedict, or Katch-McArdle formula. Free online BMR calculator.

Calculate your Total Daily Energy Expenditure (TDEE) and get personalized calorie and macro targets for weight loss, maintenance, or muscle gain.

Calculate your body fat percentage using the US Navy or BMI method. Find your fat mass, lean mass, and fitness category. Free body fat estimator.

Calculate your ideal body weight using 4 proven formulas: Robinson, Miller, Devine, and Hamwi. Find the healthy weight range for your height.

Calculate your daily macronutrients (protein, carbs, fat) for your fitness goals. Free macro calculator for weight loss, muscle gain, keto, and more.

Calculate your estimated due date (EDD) from last period, conception date, or IVF transfer. Shows gestational age, trimesters, and key milestones.

Calculate how much water you should drink per day based on weight, activity, and climate. Get personalized daily hydration recommendations.

Calculate your 5 heart rate training zones based on age and resting heart rate. Uses simple max HR and Karvonen methods. Free cardio zone calculator.

Calculate calories burned during any exercise or activity. Uses MET values for 30+ activities including running, cycling, swimming, and everyday tasks.

Calculate running pace, distance, or finish time. Find your pace for 5K, 10K, half marathon, and marathon. Convert between km and miles.

Calculate your ovulation date and fertile window based on your cycle. See a 3-month forecast calendar. Free online ovulation predictor.

Calculate your daily calorie needs based on age, height, weight, and activity level. Find your TDEE and calorie goals.