How To Measure Body Fat Percentage Method 1 Body Fat Calipers This can be done by simple calculations. firstly subtract your present % body fat from 100 and divide this by 100 minus the desired % body fat. multiply this by the present weight and this will give you the weight for the desired % body fat. for example, a female 145 lb. who is now 32% body fat. To determine body fat percentage using these measurements, you'll first need to calculate body density using the jackson pollock equation: 1. enter the person's caliper measurements and age into the jackson pollock formula. for men: body density = 1.10938 (0.0008267 x the sum of the chest, abdomen and thigh skinfolds in millimeters.
How To Measure Body Fat Percentage Fit Trainers Transform Your Body 1. choose a test. pinch tests measure skinfolds at three, four, seven, and even ten points on the body. taking measurements from more points does not ensure accuracy of the body fat percentage calculation. that depends on the precision used when taking the measurements and the formula used to calculate body fat. D = 1.1333 – (0.0612 * l) older than 50. d = 1.1339 – (0.0645 * l) where. d – body density; and. l – log base 10 of the sum of skinfolds. after you calculate your body density, use the following formula to calculate the body fat percentage. body fat percentage (%) = (495 body density) 450. To measure, pinch the skin and the underlying fat away from the muscle. place the jaws of the caliper approximately 1 cm away from your fingers. close the caliper and read the measurement within a few seconds. applying consistent pressure each time is important. measurements are typically recorded in millimeters. You will then use your body density to calculate your body fat percentage: body fat percentage = ( (4.95 body density) – 4.5)) x 100. use the following calculations for women: body density: body density = 1.097 – (0.00046971 x sum of skinfolds in mm) (0.00000056 x square of the sum of skinfold sites) – (0.00012828 x age) body fat.
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