Health & Fitness
Body Fat Calculator - Body Fat Percentage
Estimate body fat percentage using the U.S. Navy circumference method.
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
Which method is used?
This calculator uses the U.S. Navy circumference method.
Why does it ask for hip measurement?
Hip measurement is used for female body fat estimation.
Is this precise?
It is an estimate; accuracy depends on measurement quality.
Related tools
About this tool
Inputs
- Sex
- Height
- Neck
- Waist
- Hip
Results
- Body fat
You do not need a spreadsheet to estimate body fat percentage using the u.s. navy circumference method. This Body Fat Calculator gives you the answer in seconds. The required inputs are sex, height, neck, waist and hip. Once provided, the result — body fat — appears instantly. Health metrics give you a snapshot of where you stand, but they are not a diagnosis.
Heart rate zones are typically expressed as percentages of maximum heart rate (220 minus age is a common approximation). From students to professionals, anyone who needs to estimate body fat percentage using the u.s. navy circumference method benefits from getting an instant, verifiable answer. Athletes and pregnant individuals may fall outside standard reference ranges without any health concern. Hip measurement is used for female body fat estimation. Use the result as a starting point for deeper analysis. Pair it with other tools for a more complete picture.