💪 Fitness Category

Free Fitness Calculators

Science-backed fitness tools to help you track your body metrics, plan workouts, and achieve your health goals.

12 Tools Available

All Fitness Calculators

Calculate Body Mass Index using the WHO standard formula. Get your weight category instantly.

Calorie Calculator

Find your daily calorie needs based on age, gender, weight, height, and activity level.

Body Fat Calculator

Estimate body fat % using the U.S. Navy method with neck, waist, and hip measurements.

Discover your Basal Metabolic Rate — calories burned at complete rest each day.

Ideal Weight Calculator

Find your ideal weight using Hamwi, Devine, Robinson, and Miller formulas.

Pace Calculator

Calculate running pace, speed, and finish time for any distance or event.

Army Body Fat Calculator

Calculate body fat using the official U.S. Army tape test method.

Lean Body Mass Calculator

Calculate your lean body mass (fat-free mass) using multiple formula methods.

Healthy Weight Calculator

Find the healthy weight range for your height based on BMI guidelines.

Calories Burned Calculator

Estimate calories burned during various exercises using MET values.

One Rep Max Calculator

Calculate your 1RM for any lift using the Brzycki, Epley, and Lander formulas.

Target Heart Rate Calculator

Find your fat burning and cardio training heart rate zones based on age.