Body Fat from BMI Calculator
Estimate body fat percentage from BMI, age and sex (Deurenberg).
Your result
This is a rough estimate. Skinfold, DEXA or bioimpedance measures are more accurate for an individual.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
Search by intent
Find this tool when you want to:
Learn more
What Is BMI and What Does It Really Tell You?
BMI is a quick screening number. Here is what it measures, where it falls short and how to use it sensibly.
Weight & Body CompositionHow to Find a Healthy Weight Range for Your Height
There is no single perfect weight. Learn how clinicians use ranges and several formulas.
Weight & Body CompositionBody Fat Percentage Explained
What counts as lean, average or high body fat, and how to estimate yours at home.
Frequently asked questions
What does the Body Fat from BMI Calculator do?
Estimate body fat percentage from BMI, age and sex (Deurenberg). 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: estimate body fat without calipers; body fat percent from bmi; deurenberg formula.