Question 1

How accurate is the US Navy body fat calculator?

Accepted Answer

It's generally reliable for population averages but less precise than DEXA or hydrostatic testing. The Navy method provides reasonable estimates for everyday health tracking.

Question 2

Which method should I use?

Accepted Answer

The Navy method provides solid everyday estimates. Skinfold is more accurate if measured correctly with proper calipers. BMI-based estimates are quick but less precise for muscular individuals.

Question 3

Do I need to measure hips?

Accepted Answer

Only for females using the US Navy formula. Males do not need hip measurements for the Navy method.

Question 4

Why do BMI estimates differ from Navy results?

Accepted Answer

BMI does not account for body composition and may overestimate fat for muscular individuals or underestimate for sedentary people. The Navy method uses circumference measurements which better reflect body composition.

Question 5

Is this safe for health decisions?

Accepted Answer

Use results as general estimates for tracking progress. Consult a medical professional when making significant health or fitness decisions. These calculations are informational only.

Body Fat Calculator