Body Fat Calculator
Estimate your body fat percentage using the US Navy Method. Enter your measurements to see your body fat %, fitness category, lean body mass, and fat mass.
FAQ
What is the US Navy Method for body fat?
The US Navy Method estimates body fat percentage using circumference measurements at the neck, waist, and hips (for women). Developed by the US Navy, it's a simple and reliable alternative to calipers and body fat scales.
How accurate is the Navy Method?
Studies show the US Navy Method is typically accurate within 3-4% of more advanced methods like DEXA scans. Accuracy depends on consistent measuring technique, so measure at the same spot each time.
How do I measure my waist and neck?
Measure your neck just below the larynx (Adam's apple) while looking straight ahead. Measure your waist at the navel (belly button) after a normal exhale. For hips (women), measure at the widest point of the buttocks.
What is a healthy body fat percentage?
For men, 10-20% is generally healthy. For women, 18-28% is healthy. Athletes typically carry less (men 6-13%, women 14-20%), while essential fat minimums are 2-5% for men and 10-13% for women.
Is body fat percentage better than BMI?
Body fat percentage distinguishes between muscle and fat, making it more accurate for athletes and muscular individuals. However, BMI is still useful for general population screening and is quicker to calculate.