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Body Fat Percentage Calculator

Estimate body fat percentage using the US Navy method.

Estimated using the US Navy method. This is an approximation and not a substitute for professional assessment.

How to Use the Body Fat Percentage Calculator

Enter your values in the fields above and click Calculate. Results appear instantly below the tool. Use the Clear button to reset all fields and start over.

About This Tool

Estimate body fat percentage using the US Navy method. All calculations happen in your browser — your data is never sent to any server. Bookmark this page for quick access anytime you need it.

❓ Frequently Asked Questions

How accurate is the Navy method?
The US Navy method is accurate within 1-3% for most people. For higher precision, consider DEXA scanning or hydrostatic weighing.
What is a healthy body fat percentage?
For men, 10-20% is fit to average. For women, 18-28% is the fit to average range. Essential minimums are about 3-5% for men and 10-13% for women.

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