Explore health and fitness calculators designed to help you understand your body composition, weight, and daily calorie needs. Use these tools to estimate your body fat percentage, BMI, energy expenditure, macros, and more as you work toward your health goals.
Estimate your body fat percentage, fat mass, lean mass, and category using the U.S. Navy body fat formula with height, weight, neck, waist, and hip measurements.
Estimate your BMI and weight category using imperial or metric units, and see the healthy weight range for your height based on standard adult BMI charts.
Estimate your daily calorie needs for weight loss, weight gain, or maintenance using the Mifflin-St Jeor equation and activity levels.
Convert your daily calorie target into grams of protein, carbs, and fat using balanced, high-protein, or lower-carb macro patterns.