# How do you calculate body fat with skinfold?

## How do you calculate body fat with skinfold?

For men, it’s: 1.10938 – (0.0008267 x sum) + (0.0000016 x sum squared) – (0.0002574 x age). Once you’ve calculated body density, you calculate percent fat by using the equation [(495 / body density) – 450] x 100.

What skinfold sites determine body fat percentage?

To estimate the total amount of body fat, four skinfolds are measured:

• Biceps skinfold (front side middle upperarm)
• Triceps skinfold (back side middle upperarm)
• Subscapular skinfold (under the lowest point of the shoulder blade)
• Suprailiac skinfold (above the upper bone of the hip)

### How is skinfold calculated?

The tester pinches the skin at the location site and pulls the fold of skin away from the underlying muscle so only the skin and fat tissue are being held. Special skinfold calipers are then used to measure the skinfold thickness in millimeters. Two measurements are recorded and averaged.

Are Skinfolds accurate for measuring body fat?

Accuracy: The skill of the person performing the skinfolds can vary, impacting the accuracy. Measurement errors can range from 3.5–5% body fat (3). Instructional video: Here is an example of a 7-site skinfold assessment.

#### What is a good percentage of body fat?

How Much Fat is OK?

Women Men
Essential fat 10-12% 2-4%
Athletes 14-20% 6-13%
Fitness 21-24% 14-17%
Acceptable 25-31% 18-25%

How accurate is the skinfold test?

The calculations and calipers themselves are very accurate. While there is large room for user error in skin fold measurements, skilled trainers who practice often can obtain up to 98% accuracy.

## What is the formula for body fat percentage?

Body fat is only one part of the composition of the human body. A two compartment model divides the body into lean body weight and fat weight components. Your fat weight can be expressed as a percentage of your total body weight by using the following formula: body fat percentage (BF%) = (fat weight ÷ total body weight) x 100.

How do you check your body fat percentage?

Perhaps the most accurate method for determining body fat percentage is with magnetic resonance imaging (MRI) or computerized tomography (CT) scans. These machines take cross-sectional images of the body and can even measure intra-abdominal fat. These tests are not often used for the sole purpose of measuring body fat.

### How do you calculate percent body fat percentage?

Divide your body fat mass by your total body weight and multiply by 100 to calculate your percent body fat. In the example, 31.9 divided by 180 and multiplied by 100 calculates your percent body fat of 17.7 percent.

How do you calculate body fat weight?

Calculating Body Fat. The simplest way to calculate body fat is to use your height and weight. Divide your weight in pounds by your height in inches squared, then multiply the number by 703.