Health & Fitness Calculators
Calculate BMI, calories, body fat percentage, and other health metrics with our comprehensive tools.
BMI Calculator
About BMI
Body Mass Index (BMI) is a measure of body fat based on height and weight. It's used to categorize individuals as underweight, normal weight, overweight, or obese.
Daily Calorie Calculator
About Daily Calories
Daily calorie needs are calculated using the Mifflin-St Jeor equation, which considers your age, gender, weight, height, and activity level.
Body Fat Calculator
About Body Fat Percentage
Body fat percentage is the proportion of fat to total body weight. This calculator uses the U.S. Navy method for estimation.
BMR Calculator
About BMR
Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions at rest.
One Rep Max Calculator
About 1RM
One Rep Max (1RM) is the maximum weight you can lift for a single repetition. This calculator uses the Epley formula for estimation.
Macro Calculator
About Macronutrients
Macronutrients (protein, carbohydrates, and fats) are the main nutrients your body needs in large amounts for energy and growth.
Daily Water Intake Calculator
About Water Intake
Proper hydration is essential for optimal body function. Water needs vary based on weight, activity level, and environmental factors.
Heart Rate Zones Calculator
About Heart Rate Zones
Heart rate zones help optimize your training by targeting specific intensity levels for different fitness goals.