About This Tool
The Body Fat Calculator estimates your body fat percentage using the US Navy circumference method — a reliable measurement-based approach that doesn't require expensive equipment.
Frequently Asked Questions
How accurate is the US Navy body fat method?
The US Navy method is reasonably accurate for most people, typically within 3-4% of clinical measurements. For exact results, DEXA scans or hydrostatic weighing are more accurate.
Where do I measure waist circumference?
For men, measure at the navel level. For women, measure at the narrowest part of the abdomen.
What is a healthy body fat percentage?
Generally, 10-20% for men and 18-28% for women is considered a healthy range, though ideal percentages vary by age and goals.