Body Fat Calculator
Estimate your body fat percentage using the Navy method
Enter values to see results
Fill in the form and click Calculate
How to Measure
- Waist: Measure at navel level, standing relaxed
- Neck: Measure just below the larynx (Adam's apple)
- Hip (women): Measure at the widest point of your hips
- Keep the tape snug but not compressing the skin
- Measure at the end of a normal exhale
Body Fat Categories
Men
- Essential: 2-5%
- Athletes: 6-13%
- Fitness: 14-17%
- Average: 18-24%
- Obese: 25%+
Women
- Essential: 10-13%
- Athletes: 14-20%
- Fitness: 21-24%
- Average: 25-31%
- Obese: 32%+
Frequently Asked Questions
How accurate is the Navy body fat method?
The US Navy method is accurate to within 3-4% for most people when measurements are taken correctly. It correlates well with hydrostatic weighing and DEXA scans for the general population.
How do I measure my waist correctly?
Measure your waist at navel level, standing relaxed. The tape should be snug but not compressing the skin. Measure at the end of a normal exhale, not sucking in your stomach.
What is a healthy body fat percentage?
For men: 10-20% is considered fit, 20-25% average. For women: 18-28% is considered fit, 25-31% average. Athletes may have lower percentages, while some fat is essential for health.
Why is body fat percentage better than weight alone?
Body fat percentage accounts for muscle mass, which weighs more than fat. Two people at the same weight can have very different body compositions and health profiles.