Health•Free tool
Body Fat Calculator – Body Fat Percentage
Calculate your body fat percentage using the US Navy method. Enter gender, height, neck, waist and hip measurements.
No sign-upBrowser-based
HLT
Tool
Enter your values and get results instantly.
HOW
How to Use
- 1Select your gender\n2. Enter height, neck and waist (and hip for women)\n3. Click Calculate\n4. See your body fat percentage and lean mass
WIN
Benefits
US Navy standard formula
Male and female support
Lean mass estimate
Instant results
Free and private
FAQ
Frequently Asked Questions
How is body fat calculated?
The US Navy method uses height, neck and waist circumference (plus hips for women) in a body-fat formula validated against hydrostatic weighing.
What is a healthy body fat range?
For men 10-20% is athletic-to-average; for women 18-28%. This varies by age and fitness goals.
Is it accurate?
It provides a good estimate (±3%) without special equipment. For exact measurement, DEXA or hydrostatic testing is more precise.