Question 1

Which methods does this body fat calculator use?

Accepted Answer

Common options include the U.S. Navy tape method, BMI-based estimates, and Jackson-Pollock skinfold formulas.

Question 2

How accurate is the Navy method?

Accepted Answer

It’s a practical field estimate; accuracy depends on consistent tape placement and posture.

Question 3

Do I need a DEXA scan?

Accepted Answer

DEXA is a reference method but not necessary for progress tracking—use the same method consistently.

Question 4

What are typical healthy ranges?

Accepted Answer

Ranges vary by sex and age; many guidelines cite ~10–20% for men and ~18–28% for women, but context matters.

Question 5

Can hydration affect readings?

Accepted Answer

Yes—hydration and timing influence circumference and skinfold readings; measure under similar conditions.

Body Fat Calculator