There are two more calculations performed based on Jackson and Pollock formulas, one for fat percentage from 3 sites and another from 4 sites. The lean body mass can then be estimated as difference between the weight and body fat mass. The SIRI formula is then used to transform body density in fat percentage:īody fat mass is obtained by multiplying the body fat percentage with the weight and then diving to 100. In order to obtain the body fat percentage value, the skinfold results are input in gender specific formulas that generate the body density of the subject:ĭ = (1.097 - (0.00046971 x (Chest + Abdomen + Thigh + Triceps + Axilla + Subscapula + Suprailiac)) + (0.00000056 x (Chest + Abdomen + Thigh + Triceps + Axilla + Subscapula + Suprailiac) 2) - (0.00012828 x Age))ĭ = (1.112 - (0.00043499 x (Chest + Abdomen + Thigh + Triceps + Axilla + Subscapula + Suprailiac)) + (0.00000055 x (Chest + Abdomen + Thigh + Triceps + Axilla + Subscapula + Suprailiac) 2) - (0.00028826 x Age))
#MENS BODY FAT CALCULATOR SKIN#
The only criticism received relates to the caliper test not being precise enough and to the fact that this can only account for under skin fat deposits. This method is considered the more accurate than the US navy tape measure which uses the neck, waist and hip circumferences. The seven measurements above must be input in millimeters and should be taken from the same side of the subject, usually the right side. ■ Suprailiac – diagonal fold, immediately superior and in line with the angle of the iliac crest, on the anterior axillary line. ■ Subscapula – diagonal 45 degrees fold, 1-2 cm below the angle of the scapula. ■ Axilla – vertical fold on the midaxillary line at the level of the xiphoid process of the sternum. The arm should be held freely to the side of the body. ■ Triceps – vertical fold on the posterior midline of the upper arm, halfway between the bony processes (shoulder and elbow).
■ Thigh – vertical fold on the anterior midline of the thigh, half way between the proximal border of the patella and the hip.
■ Abdomen – vertical fold, 2 cm to the right side of umbilicus. ■ Chest – diagonal fold, one half the distance for men and one third of distance for females, between anterior axillary line and nipple. ■ Weight – can be input in either pounds or kilograms and is useful in determining the fat mass from the fat percentage and then the lean body mass. ■ Age – the formulas are also adapted according to subject age. ■ Gender – because the formulas to be applied are gender specific. The body fat percentage 7 site skinfold calculator requires the following input: This health tool uses the Jackson and Pollock skinfold formulas to transform skinfold measurements, taken with calipers from seven places of the body, into body fat percentage, respectively body fat mass and lean mass. How does the body fat percentage 7 site skinfold calculator work?
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