Relative Fat Mass Calculator
A body fat estimate using only height and waist.
Your result
Relative fat mass uses waist and height to estimate body fat. It correlates well with DEXA scans in many adults.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the Relative Fat Mass Calculator do?
A body fat estimate using only height and waist. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: body fat from waist and height; rfm body fat; simple fat estimate.