Body Fat Calculator
The Body Fat Calculator estimates the percentage of fat in your body based on measurements such as waist, neck, height, and weight. Body fat percentage is a better indicator of fitness and health than weight alone.
Use this calculator to estimate body fat levels and better understand your body composition.
How to Use the Body Fat Calculator
Enter your gender, height, neck and waist measurements. Women also need to enter hip measurement. All measurements should be in centimetres. Click Calculate to see your body fat percentage and category.
How Body Fat Percentage Is Calculated
Body fat percentage measures the proportion of fat compared to the total body weight. Unlike BMI, body fat percentage provides a more accurate picture of body composition.
This calculator uses the U.S. Navy Method, which estimates body fat based on measurements of height, waist, neck, and hips (for women).
Typical body fat ranges are:
Men
Essential fat: 2–5%
Athletes: 6–13%
Fitness: 14–17%
Average: 18–24%
Obese: 25%+
Women
Essential fat: 10–13%
Athletes: 14–20%
Fitness: 21–24%
Average: 25–31%
Obese: 32%+
FAQs
What is a healthy body fat percentage?
For men, 14–17% is considered fitness level. For women, 21–24% is fitness level. Athletes typically sit lower than these ranges.
What is the Navy Method?
The U.S. Navy Method estimates body fat using circumference measurements rather than requiring specialist equipment. It’s a reliable and widely used formula for estimating body composition.
Is body fat percentage better than BMI?
Yes, for most people. BMI doesn’t distinguish between fat and muscle, so athletes can appear overweight. Body fat percentage gives a more accurate picture of actual health.
Is this free?
Yes, completely free with no sign-up required.