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NORMAL HEALTHY RANGE OF BODY FAT PERCENTAGE
BODY FAT % RANGES FOR BOYS*
Age
Low
Optimal
6
≤12.4
12.5 -19.5
7
≤12.6
12.7 - 20.4
8
≤12.7
12.8 - 21.3
9
≤12.8
12.9 - 22.2
10
≤12.8
12.9 - 22.8
11
≤12.6
12.7 - 23.0
12
≤12.1
12.2 - 22.7
13
≤11.5
11.6 - 22.0
14
≤10.9
11.0 - 21.3
15
≤10.4
10.5 - 20.7
16
≤10.1
10.2 - 20.3
17
≤9.8
9.9 - 20.1
18
≤9.6
9.7 - 20.1
BODY FAT % RANGES FOR GIRLS*
Age
Low
Optimal
6
≤14.4
14.5 - 23.0
7
≤14.9
15.0 - 24.5
8
≤15.3
15.4 - 26.0
9
≤15.7
15.8 - 27.2
10
≤16.0
16.1 - 28.2
11
≤16.1
16.2 - 28.8
12
≤16.1
16.2 - 29.1
13
≤16.1
16.2 - 29.4
14
≤16.0
16.1 - 29.6
15
≤15.7
15.8 - 29.9
16
≤15.5
15.6 - 30.1
17
≤15.1
15.2 - 30.1
18
≤14.7
14.8 - 30.8
BODY FAT % RANGES FOR MEN**
Age
Low
Optimal
19 - 39
≤8
8.1 - 19.9
40 - 59
≤11
11.1 - 21.9
60+
≤13
13.1 - 24.9
BODY FAT % RANGES FOR WOMEN**
Age
Low
Optimal
19 - 39
≤21
21.1 - 32.9
40 - 59
≤23
23.1 - 33.9
60+
≤24
24.1 - 35.9
*Source: Derived from; HD McCarthy, TJ Cole, T Fry, SA Jebb and AM Prentice: "Body fat reference curves for
children". International Journal of Obesity (2006) 30, 598–602.
**Source: Derived from; Dympna Gallagher, Steven B Heymsfield, Moonseong Heo, Susan A Jebb, Peter
R Murgatroyd, and Yoichi Sakamoto: "Healthy percentage body fat ranges: an approach for developing
guidelines based on body mass index1–3". Am J Clin Nutr 2000;72:694–701.
The Body Fat % ranges published are for guidance only. Professional medical guidance should always be
sought before embarking on diet and exercise programs..
BODY WATER -WHY MEASURE IT? Body water is the single most important
component of body weight. It represents over half of your total weight and almost
two thirds of your lean body mass (predominantly muscle). Water performs a
number of important roles in the body: All the cells in the body, whether in the skin,
glands, muscles, brain or anywhere else, can only function properly if they have
enough water. Water also plays a vital part in regulating the body's temperature
balance, particularly through perspiration. The combination of your weight and fat
measurement could appear to be 'normal' but your body hydration level could be
insufficient for healthy living.
NORMAL HEALTHY RANGE OF BODYWATER PERCENTAGE
BODY WATER CHART***
BF % Range
Men
4 to 14%
15 to 21%
22 to 24%
25 and over
Women
Moderate
High
19.6 - 22.6
≥22.7
20.5 - 24.0
≥24.1
***Source: Derived from Wang & Deurenberg: "Hydration of fat-free body mass". American Journal Clin Nutr
1999, 69 833-841.
21.4 - 25.4
≥25.5
For those using Athlete Mode: note that athletes may have a lower body fat range
22.3 - 26.7
≥26.8
and a higher body water range than shown above, depending on their type of sport
22.9 - 27.8
≥27.9
or activity. Body water measurement results are influenced by the proportion of body
23.1 - 28.2
≥28.3
fat and muscle. If the proportion of body fat is high, or the proportion of muscle is
22.8 - 27.8
≥27.9
low then the body water results will tend to be low. It is important to remember that
22.1 - 26.9
≥27.0
measurements such as body weight, body fat and body water are tools for you to use
as part of your healthy lifestyle. As short term fluctuations are normal, we suggest
21.4 - 25.8
≥25.9
you chart your progress over time, rather than focus on a single days reading.
20.8 - 24.9
≥25.0
The Body Water % ranges published are for guidance only. Professional
20.4 - 24.2
≥24.3
medical guidance should always be sought before embarking on diet and
20.2 - 23.8
≥23.9
exercise programmes.
20.2 - 23.5
≥23.6
WHY SHOULD I KNOW MY MUSCLE MASS? According to the American College
of Sports Medicine (ASCM), lean muscle mass may decrease by nearly 50 percent
Moderate
High
between the ages of 20 and 90. If you don't do anything to replace that loss you're
23.1 - 26.1
≥26.2
losing muscle and increasing fat. It is also important to know your muscle mass
24.6 - 27.9
≥28.0
% during weight reduction. At rest, the body burns approximately 110 additional
26.1 - 29.6
≥29.7
calories for each kilo of muscle gained. Some advantages of gaining muscle mass
27.3 - 31.1
≥31.2
include:
• Reversing the decline in strength, bone density and muscle mass that
28.3 - 32.1
≥32.2
accompanies age
28.9 - 32.7
≥32.8
• Maintenance of flexible joints
29.2 - 33.0
≥33.1
• Guide weight reduction when combined with a healthy diet.
29.5 - 33.2
≥33.3
This product is for domestic use only. Pregnant women should only use the weight
29.7 - 33.5
≥33.6
function.
30.0 - 33.7
≥33.8
CAUTION : Do not use this product if you have a pacemaker or other medical
30.2 - 34.0
≥34.1
device fitted. If in doubt, consult your doctor.
30.2 - 34.3
≥34.4
WHAT DOES MY BMI VALUE MEAN? Body Mass Index (BMI) is an index of weight-
30.9 - 34.7
≥34.8
for-height that is commonly used to classify underweight, overweight and obesity in
adults. This scale calculates your BMI value for you. The BMI categories shown in the
Moderate
High
chart and table below are recognised by the WHO (World Health Organisation) and
can be used to interpret your BMI value.
20 - 24.9
≥25
Your BMI category can be identified using the table below.
22 - 27.9
≥28
25 - 29.9
≥30
BMI Category
Moderate
High
18.6-24.9
33 - 38.9
≥39
34 - 39.9
≥40
36 - 41.9
≥42
IMPORTANT: If the chart/table shows that you are outside of a 'normal' healthy
weight range, consult your doctor before taking any action. BMI classifications are for
adults (age 20+ years) only.
ft
Optimal BW % Range
70 to 63%
63 to 57%
57 to 55%
55 to 37%
4 to 20%
21 to 29%
30 to 32 %
33 and over
BMI Value Meaning
< 18.5
Underweightt
Normal
25-29.9
Overweight
30+
Obese
kg
st
70 to 58%
58 to 52 %
52 to 49%
49 to 37%
Health Risk Based Solely On BMI
Moderate
Low
Moderate
High
m
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