Your Body, Your Numbers

Free, accurate health and fitness calculators. Know your TDEE, track your macros, estimate body fat, and test your strength. Science-backed formulas, instant results, zero signup.

Weight Management

TDEE Calculator

Calculate your Total Daily Energy Expenditure.

Calorie Calculator

How many calories should you eat per day?

Calorie Deficit Calculator

Find your ideal deficit for weight loss.

Maintenance Calories

Eat exactly enough to maintain your weight.

BMR Calculator

Calories your body burns at complete rest.

BMI Calculator

Check your Body Mass Index category.

BMI for Women

Female-specific BMI ranges and context.

BMI for Men

Male-specific BMI ranges and muscle context.

TDEE for Weight Loss

TDEE-based calorie targets that work.

BMR for Weight Loss

Safe calorie targets above your BMR.

Pregnancy Weight Gain

IOM-based week-by-week weight targets.

Nutrition

Macro Calculator

Protein, carbs & fat breakdown by goal.

Protein Calculator

Daily protein needs by body weight and goal.

Keto Calculator

Personalized ketogenic diet macros.

Keto Macros

Daily fat, protein & net carb targets.

Intermittent Fasting

Your optimal eating window calculator.

Chipotle Nutrition

Build a Chipotle meal and see total nutrition.

Nutrition Calculator

Food calorie & macro lookup database.

Caffeine Calculator

How long until your caffeine wears off?

Water Intake

How much water should you drink daily?

GKI Calculator

Glucose Ketone Index for metabolic health.

Fitness & Strength

One Rep Max (1RM)

Estimate your maximum single-rep lift.

Bench Press Calculator

Your bench press 1RM & strength level.

Squat Calculator

Your squat 1RM & strength level.

Deadlift Calculator

Your deadlift 1RM & strength level.

Wilks Calculator

Powerlifting strength comparison score.

Running Calories

Calories burned running by pace & distance.

Walking Calories

Calories burned walking by speed & duration.

Pace Calculator

Running pace, speed & race finish time.

Heart Rate Zones

Your 5 heart rate training zones.

Body Composition

Body Fat Calculator

U.S. Navy method body fat estimate.

Body Type Quiz

Discover your somatotype body type.

Lean Body Mass

Calculate your fat-free body weight.

Army Body Fat

ABCP tape test body fat calculator.

Waist-to-Hip Ratio

Assess your health risk by WHR.

Health & Wellness

Sleep Calculator

Ideal bedtime based on 90-min sleep cycles.

BAC Calculator

Estimate your Blood Alcohol Content.

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