Enter your height, neck circumference, and waist circumference into the calculator to estimate your body fat percentage based on the US navy body fat formula.

## Navy Body Fat Formula

The following formula is used by the US navy to estimate body fat percentage.

BF = 495 / ( 1.0324 – 0.19077 * log10( w- n ) + 0.15456 * log10( h ) ) – 450

- Where BF is the body fat percentage
- w is waist circumference
- n is neck circumference
- h is height

## Navy Body Fat Definition

The navy body fat formula is used to calculate an estimated body fat percentage used in determining suitability for acceptance into the Navy.

## Navy Body Fat Requirements

- Age 18 to 21 –
**22%**for males,**33%**for females; - Age 22 to 29 –
**23%**for males,**34%**for females; - Age 30 to 39 –
**24%**for males,**35%**for females; - Age over 40 –
**26%**for males,**36%**for females.

## How to calculate Navy Body Fat?

How to calculate navy body fat?

**First, measure waist circumference.**Measure your waist.

**Next, measure your neck circumference.**Measure your neck.

**Next, determine your height.**Measure your overall height.

**Calculate your Navy Body Fat.**Use the equation to calculate your navy body fat.