Health & Wellness Tools

Calculate your Body Mass Index and health category

Calculate BMI percentile for children and teens aged 2-20 using CDC growth charts. Get accurate BMI assessment based on age, gender, height, and weight.

Calculate your Basal Metabolic Rate (BMR) - the calories your body burns at complete rest. Uses the Mifflin-St Jeor equation for accurate BMR calculation.

Estimate body fat percentage using the US Navy method with simple body measurements. Calculate fat mass, lean mass, and understand your body composition category.

Calculate body surface area (BSA) using multiple formulas including Du Bois, Mosteller, Haycock, and Gehan & George. Essential for medical dosing, cardiac index, and burn assessment.

Calculate daily calorie needs based on age, weight, height, and activity level. Get personalized calorie goals for weight loss, maintenance, or weight gain using the Mifflin-St Jeor equation.

Calculate calories burned while cycling based on speed, duration, weight, terrain, bike type, and wind conditions. Get accurate calorie estimates for your cycling workouts.

Calculate target heart rate zones for exercise training. Get personalized HR zones for fat burn, cardio, anaerobic, and peak performance based on age, resting heart rate, and fitness level.

Calculate your ideal body weight using multiple medical formulas including Devine, Robinson, Miller, and Hamwi methods. Get personalized recommendations based on height, age, and gender.

Calculate personalized macros for ketogenic diet. Get your ideal fat, protein, and carb intake based on 75-20-5 keto ratios. Achieve and maintain ketosis for effective weight loss.

Calculate lean muscle mass based on body weight and body fat percentage. Track your muscle mass, fat mass, and body composition for fitness goals.

Calculate your daily macronutrient needs (protein, carbs, fats) based on your goals. Get personalized calorie targets and macro splits for fat loss, muscle gain, or maintenance with meal distribution examples.

Calculate your fertile days and ovulation date based on menstrual cycle. Track your fertile window for conception planning and understand your cycle better.

Calculate your pregnancy due date from last menstrual period or conception date. Get estimated due date, current week, trimester milestones, and time remaining.

Calculate your daily protein needs based on weight, activity level, and fitness goals. Get personalized recommendations for muscle gain, fat loss, or athletic performance with meal distribution guidance.

Calculate running pace, speed, and finish times. Get pace per km/mile, predicted race times, and split times. Perfect for runners training for 5K, 10K, half marathon, or marathon.

Calculate optimal sleep and wake times based on 90-minute sleep cycles. Get personalized recommendations for when to sleep or wake up to feel refreshed and energized.

Convert steps walked to calories burned. Calculate how many calories you burn based on your steps, weight, and walking intensity. Free instant results with distance and active time estimates.

Calculate your daily water intake needs based on weight, activity level, and climate. Get personalized hydration recommendations in liters, ounces, cups, and glasses.