What is a healthy fat mass?

Essential fat is 2-5% of body weight for men and 10-13% for women. Athletic ranges are 6-13% for men and 14-20% for women. Above 25% for men and 32% for women is generally considered obese.

How does fat mass differ from BMI?

BMI only uses weight and height and cannot distinguish fat from muscle. Fat mass directly quantifies the amount of adipose tissue, making it a much more meaningful health metric.

Can I be heavy but have low fat mass?

Yes. Highly muscular athletes can have high body weight with low fat mass, which BMI would misclassify as overweight or obese. Fat mass measurement resolves this.

Fat Mass Calculator

Calculate total fat mass: Fat Mass = Total Weight - Lean Body Mass. Useful for tracking body composition changes over time.

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Frequently Asked Questions

What is a healthy fat mass?

How does fat mass differ from BMI?

Can I be heavy but have low fat mass?