Instant calculator
Body Fat Calculator
This body fat calculator uses a tape-measure formula based on the U.S. Navy method for a rough body fat estimate.
How to use
Quick steps
- Enter sex, height, waist, neck, hip (women only).
- Review the instant answer block and supporting calculations.
- Compare the result with related tools in the same category before making a decision.
Formula
How this calculator works
Body fat estimate uses logarithmic formulas based on height and body circumferences
This is an estimate. Measurement technique and body type can materially change the result.
FAQ
Common questions
How does the body fat calculator work?
It uses Body fat estimate uses logarithmic formulas based on height and body circumferences. Enter sex, height, waist, neck, and hip (women only) to generate an instant estimate.
When should I use this body fat calculator?
Estimate body fat percentage using a tape-measure method.
What should I keep in mind?
This is an estimate. Measurement technique and body type can materially change the result.