Health & Fitness Tools

Calculate your Body Mass Index (BMI) using metric or imperial units. Understand your weight category with our free online BMI calculator.

Calculate your Basal Metabolic Rate — the number of calories your body burns at complete rest. Free online BMR calculator using Harris-Benedict and Mifflin-St Jeor formulas.

Calculate your Total Daily Energy Expenditure based on activity level. Free online TDEE calculator — know exactly how many calories you need to maintain, lose, or gain weight.

Find your daily calorie deficit or surplus to reach your weight goal. Free online calorie deficit calculator — enter your TDEE and target to get a personalised calorie budget.

Calculate your recommended daily water intake based on weight, activity level, and climate. Free online hydration calculator — stay optimally hydrated every day.

Calculate your running pace, speed, and predicted finish times for 5K, 10K, half marathon, and marathon distances. Free online running pace calculator for all levels.

Estimate your one-rep maximum (1RM) for any barbell or dumbbell lift using the Brzycki, Epley, and Lombardi formulas. Free online 1RM calculator for strength training.

Find the best bedtime or wake-up time to complete full 90-minute sleep cycles and wake up feeling refreshed. Free online sleep cycle calculator based on sleep science.

Estimate your body fat percentage using the US Navy method and BMI method. Free online body fat calculator for men and women — get your fitness category instantly.

Calculate your estimated pregnancy due date and current week from your last menstrual period (LMP) or conception date. Free online pregnancy due date calculator.