Normal Body Fat

Body Fat Rating Scale
(fat mass to whole body weight)

MALE

Age	EXCELLENT	GOOD	FAIR	POOR
19-24	10.8%	14.9%	19.0%	23.3%
25-29	12.8%	16.5%	20.3%	24.4%
30-34	14.5%	18.0%	21.5%	25.2%
35-39	16.1%	19.4%	22.6%	26.1%
40-44	17.5%	20.5%	23.6%	26.9%
45-49	18.6%	21.5%	24.5%	27.6%
50-54	19.8%	22.7%	25.6%	28.7%
55-59	20.2%	23.2%	26.2%	29.3%
60+	20.3%	23.5%	26.7%	29.8%

FEMALE

Age	EXCELLENT	GOOD	FAIR	POOR
19-24	18.9%	22.1%	25.0%	29.6%
25-29	18.9%	22.0%	25.4%	29.8%
30-34	19.7%	22.7%	26.4%	30.5%
35-39	21.0%	24.0%	27.7%	31.5%
40-44	22.6%	25.6%	29.3%	32.8%
45-49	24.3%	27.3%	30.9%	34.1%
50-54	26.6%	29.7%	33.1%	36.2%
55-59	27.4%	30.7%	34.0%	37.3%
60+	27.6%	31.0%	34.4%	38.0%

If a male has less than 6% (female less than 9%) of fat in the whole body mass, then it is risky for him/her and he/she must gain weight. Fat percentage that exceeds “poor” figures can be considered as “very poor” or “fatal”. “Fatal” figures mean that without drastic measures you will get a bunch of chronic diseases (diabetes most probable) that will end with your death! If you got “fatal” figures you have immediately to change your lifestyle – to go on a diet, do exercises (jogging or hiking at least), use some fat burners. Calculations of figures in these tables have been made using body density equations by JACKSON and POLLOCK as well as SIRI fat percentage equation.

BODY DENSITY EQUATIONS (JACKSON & POLLOCK)

MALE BD = 1.0990750 - 0.0008209 (X2) + 0.0000026 (X2)² - 0.0002017 (X3) - 0.005675 (X4) + 0.018586 (X5)

Where X2 = sum of the chest, abdomen and thigh skinfold thickness in mm
X3 = age in years
X4 = waist circumference in cm
X5 = forearm circumference in cm

FEMALE BD = 1. 1 470292 - 0.0009376 (X3) + 0.0000030 (X3)²- 0.0001156 (X4) - 0.0005839 (X5)

Where X3 = sum of triceps, thigh and suprailiac (waist) skinfold thickness, in mm
X4 = age in years
X5 = gluteal (buttocks) circumference, in cm

SIRI FAT PERCENTAGE EQUATION

FAT % = [(4.95/BD)-4.5] x 100 Where BD – body density