Navy method
Sample
Neck + waist (+ hip for women) measurements.
What you get
Body fat % estimate from circumference formula.
Body Fat Calculator
The Navy method uses a few girth measurements and log equations. Follow standard tape placement for best consistency.
Body Fat Calculator
US Navy circumference method (measurements in inches).
Body fat (estimate)
21.3%
These tools provide general fitness estimates only and are not a substitute for professional medical advice.
How to Use This Tool
- Measure per protocol (inches).
- Enter values for your sex.
- Review the estimated body fat percentage.
Features
- Separate inputs for men and women
- Inch-based formula
- Copy-friendly result
Example
Frequently Asked Questions
Related Tools
Lean Body Mass Calculator
LBM estimate from height and weight.
Army Body Fat Calculator
Tape-based estimate used in screening.
BMI Calculator
BMI and category from height and weight.
Age Calculator
Exact age from your birth date.
Calorie Calculator (TDEE)
Maintenance calories (TDEE) estimate.
BMR Calculator
Basal metabolic rate in kcal/day.
Ideal Weight Calculator
Devine ideal weight from height.
Pace Calculator
Pace per km from time and distance.
Healthy Weight Calculator
Healthy kg range for your height.