Fitness & Nutrition

Get a complete picture of your health metrics with calculators for BMI, body fat, calorie needs, macronutrient splits, and more.

7 calculators in this toolkit

Calculate your Body Mass Index (BMI) based on weight and height to assess whether you are underweight, normal, overweight, or obese.

Calculate your Basal Metabolic Rate (BMR) using the Mifflin-St Jeor equation to estimate how many calories your body burns at rest.

Calculate your Total Daily Energy Expenditure (TDEE) and target calorie intake based on your BMR, activity level, and weight goal.

Split your daily calorie target into grams of protein, carbohydrates, and fat based on customizable percentage ratios.

Estimate your body fat percentage using the U.S. Navy circumference method based on gender, waist, neck, height, and hip measurements.

Estimate your daily water intake target based on body weight and exercise duration.

Calculate your daily calorie needs, BMR, TDEE, and macronutrient targets based on your age, gender, weight, height, activity level, and fitness goal.