Body Calc Tools

Free Fitness Calculators — BMI, Calories, Body Fat, Ideal Weight & BMR

BMI Calculator

Body Mass Index — are you in a healthy weight range?

⭐ Recommended for tracking your calorie burn:

Fitbit Smart Band — Track Calories Burned — View on Amazon →

More Free Calculators

Explore our full range of free fitness and health calculators

🏋️

One Rep Max Calculator

Find your maximum strength for bench press, squat, deadlift and more

Use Free →
🥗

Macro Calculator

Get your personalised protein, carbs and fat targets based on your goal

Use Free →
🫁

VO2 Max Calculator

Estimate your cardiovascular fitness and aerobic capacity level

Use Free →
❤️

Heart Rate Zone Calculator

Find your optimal heart rate training zones for cardio and fat burning

Use Free →
🔥

Calorie Burn Calculator

Find out how many calories you burn during different exercises

Use Free →
💪

Protein Calculator

Calculate your exact daily protein needs based on your weight and goal

Use Free →
💧

Water Intake Calculator

Find out exactly how much water you should drink daily

Use Free →
😴

Sleep Calculator

Calculate your ideal sleep and wake times based on sleep cycles

Use Free →

All calculators are 100% free — no signup, no email required