Body Fat Calculator
Estimate body fat percentage with tape measurements.
Measure waist at navel height with the tape level and relaxed.
Measure just below the larynx without compressing the skin.
For female estimates, measure at the widest point of the hips.
Body fat
21.25%
Fat mass
38.3 lb
Lean mass
141.7 lb
Method
U.S. Navy circumference estimate; measurement accuracy strongly affects the result.
Formula
Body fat estimate uses logarithmic circumference formulas from the U.S. Navy method.
Assumptions
- Uses U.S. Navy circumference formulas.
- Circumference estimates are sensitive to measurement technique and are not a clinical body-composition scan.
The body fat calculator uses the U.S. Navy circumference method with waist, neck, hip, height, weight, and sex inputs.
How to Use
The body fat calculator uses the U.S. Navy circumference method with waist, neck, hip, height, weight, and sex inputs.
- Open the calculator : Start with Body Fat Calculator.
- Enter values : Fill in the required inputs and any optional settings.
- Review the result : Read the output and use the about page for more detail if needed.
Common Questions
What does the Body Fat Calculator estimate?
It estimates body fat percentage from the measurements you enter.
How accurate is the result?
Treat it as an estimate, since measurement method and body composition can change the result.