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📊 Body Fat Calculator

Calculate body fat percentage, lean mass and fat mass

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Body Weight Calculator
Calculate BMI, ideal weight, BMR and daily calorie needs
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BMR Calculator
Calculate basal metabolic rate, daily calorie burn and nutrient needs
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Ideal Weight Calculator
Calculate your ideal weight range using multiple scientific formulas
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💬 Comments: 3
L
Lily

Great for fitness tracking.

2025-12-31
S
Steven

Easy to use interface.

2025-12-30
D
Daniel

Accurate body fat calculation!

2025-12-17

What is Body Fat Percentage?

Body fat percentage is the proportion of fat tissue in your total body weight. Unlike simple weight measurements, body fat percentage better reflects body composition and health status. High body fat is associated with cardiovascular disease, diabetes and other health issues.

How to Measure

Neck: Measure the narrowest point below your Adam's apple
Waist: Stand relaxed and measure at navel level
Hip (women): Measure at the widest point of your hips
Keep the tape measure level and not too tight or loose

FAQ

How accurate is the US Navy formula?

The US Navy formula has an error margin of about 3-4%, more accurate than BMI estimation but less precise than DEXA scans or underwater weighing.

What is an ideal body fat percentage?

Healthy body fat for men is about 10-20%, for women about 18-28%. Athletes typically have lower levels, but too low can affect health.

Why do women have higher body fat standards?

Women need more essential fat for reproductive function and hormonal balance, determined by physiological differences.

How to reduce body fat?

Combine cardio and strength training with a moderate calorie deficit diet. Aim to lose 0.5-1% body fat per week.

Last Updated: 2026-06-04✓ Expert Verified