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Human body weight |
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Human body weight is a person's mass or weight.
Strictly speaking, body weight is the measurement of mass without items located on the person. Practically though, body weight may be measured with clothes on, but without shoes or heavy accessories such as mobile phones and wallets, and using manual or digital weighing scales. Excess or reduced body weight is regarded as an indicator of determining a person's health, with body volume measurement providing an extra dimension by calculating the distribution of body weight.
Average adult human weight varies by continent, from about 60 kg (130 lb) in Asia and Africa to about 80 kg (180 lb) in North America, with men on average weighing more than women.
There are a number of methods to estimate weight in children for circumstances (such as emergencies) when actual weight cannot be measured. Most involve a parent or health care provider guessing the child's weight through weight-estimation formulas. These formulas base their findings on the child's age and tape-based systems of weight estimation. Of the many formulas that have been used for estimating body weight, some include the Advanced Pediatric Life Support formula, the Leffler formula, and Theron formula. [1] There are also several types of tape-based systems for estimating children's weight, with the best-known being the Broselow tape. [2] The Broselow tape is based on length with weight read from the appropriate color area. Newer systems, such as the PAWPER tape, make use of a simple two-step process to estimate weight: the length-based weight estimation is modified according to the child's body habitus to increase the accuracy of the final weight prediction. [3]
The Leffler formula is used for children 0–10 years of age. [1] In those less than a year old, it is
and for those 1–10 years old, it is
where m is the number of kilograms the child weighs and am and ay respectively are the number of months or years old the child is. [1]
The Theron formula is
where m and ay are as above. [1]
Body weight varies in small amounts throughout the day, as the amount of water in the body is not constant. It changes due to activities such as drinking, urinating, or exercise. [4] Professional sports participants may deliberately dehydrate themselves to enter a lower weight class, a practice known as weight cutting. [5]
Ideal body weight (IBW) was initially introduced by Ben J. Devine in 1974 to allow estimation of drug clearances in obese patients; [6] researchers have since shown that the metabolism of certain drugs relates more to IBW than total body weight. [7] The term was based on the use of insurance data that demonstrated the relative mortality for males and females according to different height-weight combinations.
The most common estimation of IBW is by the Devine formula; other models exist and have been noted to give similar results. [7] Other methods used in estimating the ideal body weight are body mass index and the Hamwi method. The IBW is not the perfect fat measurement, as it does not show the fat or muscle percentage in one's body. For example, athletes' results may show that they are overweight when they are actually very fit and healthy. Machines like the dual-energy X-ray absorptiometry can accurately measure the percentage and weight of fat, muscle, and bone in a body.
The Devine formula for calculating ideal body weight in adults is as follows: [7]
The Hamwi method is used to calculate the ideal body weight of the general adult: [8]
Many disciplines in weightlifting or combat sports separate competitors into weight classes.
Ideal body weight, specifically the Devine formula, is used clinically for multiple reasons, most commonly in estimating renal function in drug dosing, and predicting pharmacokinetics in morbidly obese patients. [9] [10]
Data from 2005:
Region | Adult population (millions) | Average weight | % Overweight | Ref |
---|---|---|---|---|
Africa | 535 | 60.7 kg (133.8 lb) | 28.9% | [11] |
Asia | 2,815 | 57.7 kg (127.2 lb) | 24.2% | [11] |
Europe | 606 | 70.8 kg (156.1 lb) | 55.6% | [11] |
Latin America and the Caribbean | 386 | 67.9 kg (149.7 lb) | 57.9% | [11] |
North America | 263 | 80.7 kg (177.9 lb) | 73.9% | [11] |
Oceania | 24 | 74.1 kg (163.4 lb) | 63.3% | [11] |
World | 4,630 | 62.0 kg (136.7 lb) | 34.7% | [11] |
Country | Average male weight | Average female weight | Sample population / age range | Method | Year | Ref |
---|---|---|---|---|---|---|
Afghanistan | 69.2 kg (152.6 lb) | 62.6 kg (138.0 lb) | 18–69 | Measured | 2018 | [12] |
Algeria | 68.7 kg (151.5 lb) | 65.1 kg (143.5 lb) | 25–64 | Measured | 2005 | [13] |
Armenia | 74.6 kg (164.5 lb) | 66.4 kg (146.4 lb) | 18–69 | Measured | 2016 | [14] |
Australia | 87.0 kg (191.8 lb) | 71.8 kg (158.3 lb) | 18+ | Measured | 2018 | [15] |
Azerbaijan | 72.1 kg (159.0 lb) | 65.7 kg (144.8 lb) | 16+ | Measured | 2005 | [16] |
Bangladesh | 55.2 kg (121.7 lb) | 49.8 kg (109.8 lb) | 25+ | Measured | 2009–2010 | [17] |
Belarus | 69 kg (152.1 lb) | 56 kg (123.5 lb) | 18+ | Measured | 2008 | [18] |
Belize | 74.2 kg (163.6 lb) | 70.5 kg (155.4 lb) | 20+ | Measured | 2010 | [19] |
Benin | 63.7 kg (140.4 lb) | 60.9 kg (134.3 lb) | 18–69 | Measured | 2015 | [20] |
Bhutan | 63.2 kg (139.3 lb) | 57.4 kg (126.5 lb) | 18–69 | Measured | 2014 | [21] |
Botswana | 63.6 kg (140.2 lb) | 64.3 kg (141.8 lb) | 15–69 | Measured | 2014 | [22] |
Brazil | 72.7 kg (160.3 lb) | 62.5 kg (137.8 lb) | 20–74 | Measured | 2008–2009 | [23] |
Brunei | 74.1 kg (163.4 lb) | 62.9 kg (138.7 lb) | 19+ | Measured | 2010–2011 | [24] |
Bulgaria | 76.9 kg (169.5 lb) | 69.1 kg (152.3 lb) | 21-59 | Self-reported | 2021 | [25] |
Burkina Faso | 65.2 kg (143.7 lb) | 59.0 kg (130.1 lb) | 25–64 | Measured | 2013 | [26] |
Cambodia | 56.8 kg (125.2 lb) | 50.8 kg (112.0 lb) | 25–64 | Measured | 2010 | [27] |
Cameroon | 68.3 kg (150.6 lb) | 67.0 kg (147.7 lb) | 15+ | Measured | 2003 | [28] |
Canada | 84.6 kg (187 lb) | 70.1 kg (155 lb) | 18–79 | Measured | 2007–2009 | [29] |
Chile | 77.3 kg (170.4 lb) | 67.5 kg (148.8 lb) | 15+ | Measured | 2009–2010 | [30] |
Costa Rica - San José | 76.6 kg (168.9 lb) | 64.9 kg (143.1 lb) | 20+ | Measured | 2010 | [31] |
Czech Republic | 92.1 kg (203.0 lb) | 73.8 kg (162.7 lb) | 25–64 | Measured | 2016–2017 | [32] |
Estonia | 84.4 kg (186.1 lb) | 71.2 kg (157.0 lb) | 18+ | Measured | 2003–2010 | [33] |
France | 77.1 kg (170 lb) | 62.7 kg (138 lb) | 15+ | Measured | 2005 | [34] |
Georgia | 84.4 kg (186.1 lb) | 73.6 kg (162.3 lb) | 18–69 | Measured | 2016 | [35] |
Germany | 85.9 kg (189.4 lb) | 69.2 kg (152.6 lb) | 18+ | Self-reported | 2021 | [36] |
India | 65.0 kg (143.3 lb) | 55.0 kg (121.3 lb) | 16+ | Measured | 2020 | [37] |
Norway | 86.6 kg (190.9 lb) | 71.6 kg (157.9 lb) | 18+ | Self-reported | 2020 | [38] |
Oman | 74.9 kg (165.1 lb) | 68.1 kg (150.1 lb) | 18+ | Measured | 2017 | [39] |
Pakistan | 66.0 kg (145.5 lb) | 59.0 kg (130.1 lb) | 18–69 | Measured | 2013–2014 | [40] |
Papua New Guinea | 62.5 kg (137.8 lb) | 56.8 kg (125.2 lb) | 15–64 | Measured | 2007–2008 | [41] |
Qatar | 84.6 kg (186.5 lb) | 73.4 kg (161.8 lb) | 18–64 | Measured | 2012 | [42] |
Russia | 70.6 kg (155.6 lb) | 60.2 kg (132.7 lb) | 19+ | Measured | 2018 | [43] |
Rwanda | 58.4 kg (128.7 lb) | 55.9 kg (123.2 lb) | 15–64 | Measured | 2012–2013 | [44] |
Saint Kitts and Nevis | 84.5 kg (186.3 lb) | 83.0 kg (183.0 lb) | 25–64 | Measured | 2007–2008 | [45] |
Saudi Arabia | 77.3 kg (170.4 lb) | 71.7 kg (158.1 lb) | 25–64 | Measured | 2005 | [46] |
Serbia | 84.6 kg (186.5 lb) | 70.0 kg (154.3 lb) | 20+ | Measured | 2013 | [47] |
Sierra Leone | 62.0 kg (136.7 lb) | 59.0 kg (130.1 lb) | 25–64 | Measured | 2009 | [48] |
Solomon Islands | 75.3 kg (166.0 lb) | 70.4 kg (155.2 lb) | 25–64 | Measured | 2006 | [49] |
South Korea | 73.34 kg (161.7 lb) | 58.29 kg (128.5 lb) | 18+ | Measured | 2019 | [50] |
Spain | 82.4 kg (181.7 lb) | 66.6 kg (146.8 lb) | 18–64 | Measured | 2013 | [51] |
Sri Lanka | 61.4 kg (135.4 lb) | 54.6 kg (120.4 lb) | 18–69 | Measured | 2014–2015 | [52] |
Sudan | 65.4 kg (144.2 lb) | 61.6 kg (135.8 lb) | 18–69 | Measured | 2016 | [53] |
Sweden | 81.9 kg (180.6 lb) | 66.7 kg (147.0 lb) | 16–84 | Measured | 2003–2004 | [54] |
Togo | 63.2 kg (139.3 lb) | 60.0 kg (132.3 lb) | 15–64 | Measured | 2010 | [55] |
Tonga | 99.4 kg (219.1 lb) | 97.7 kg (215.4 lb) | 25–64 | Measured | 2012 | [56] |
Trinidad and Tobago | 76.7 kg (169.1 lb) | 71.1 kg (156.7 lb) | 15–64 | Measured | 2011 | [57] |
Turkey | 78.0 kg (172.0 lb) | 70.1 kg (154.5 lb) | 15+ | Measured | 2017 | [58] |
Turkmenistan | 76.6 kg (168.9 lb) | 67.4 kg (148.6 lb) | 18–69 | Measured | 2018 | [59] |
United Kingdom – England | 85.4 kg (188.3 lb) | 72.1 kg (159.0 lb) | 16+ | Measured | 2019 | [60] |
United Kingdom – Wales | 84.0 kg (185.2 lb) | 69.0 kg (152.1 lb) | 16+ | Measured | 2009 | [61] |
Ukraine | 80.0 kg (176.4 lb) | 71.0 kg (156.5 lb) | 18+ | Measured | 2020 | [62] |
United States | 90.6 kg (199.7 lb) | 77.5 kg (170.9 lb) | 20+ | Measured | 2015–2018 | [63] |
Researchers at the London School of Hygiene and Tropical Medicine published a study of average weights of adult humans in the journal BMC Public Health and at the United Nations conference Rio+20. [64]
Rank | Country | Kilograms | Pounds | Relative size |
---|---|---|---|---|
1 | Micronesia | 87.398 | 192.68 | |
2 | Tonga | 87.344 | 192.56 | |
3 | United States | 81.928 | 180.62 | |
4 | Samoa | 78.544 | 173.16 | |
5 | Kuwait | 77.791 | 171.50 | |
6 | Australia | 77.356 | 170.54 | |
7 | Malta | 76.956 | 169.66 | |
8 | Qatar | 76.866 | 169.46 | |
9 | Croatia | 76.412 | 168.46 | |
10 | United Kingdom | 75.795 | 167.10 | |
11 | UAE | 75.532 | 166.52 | |
12 | Greece | 75.038 | 165.43 | |
13 | Cyprus | 74.802 | 164.91 | |
14 | Egypt | 74.271 | 163.74 | |
15 | Barbados | 73.831 | 162.77 | |
16 | Belarus | 73.663 | 162.40 | |
17 | Bahrain | 73.550 | 162.15 | |
18 | Germany | 73.042 | 161.03 | |
19 | Solomon Islands | 72.797 | 160.49 | |
20 | Austria | 72.743 | 160.37 | |
21 | Saudi Arabia | 72.638 | 160.14 | |
22 | Iceland | 72.584 | 160.02 | |
23 | Trinidad & Tobago | 72.538 | 159.92 | |
24 | Argentina | 72.434 | 159.69 | |
25 | Bahamas | 72.380 | 159.57 | |
26 | Finland | 72.348 | 159.50 | |
27 | Israel | 71.912 | 158.54 | |
28 | Czech Rep. | 71.640 | 157.94 | |
29 | New Zealand | 71.631 | 157.92 | |
30 | Bulgaria | 71.459 | 157.54 | |
31 | Russia | 71.418 | 157.45 | |
32 | Slovenia | 71.200 | 156.97 | |
33 | Slovakia | 71.060 | 156.66 | |
34 | Albania | 71.019 | 156.57 | |
35 | Bosnia | 71.001 | 156.53 | |
36 | Switzerland | 70.987 | 156.50 | |
37 | Rep. of Moldova | 70.978 | 156.48 | |
38 | Venezuela | 70.788 | 156.06 | |
39 | Chile | 70.593 | 155.63 | |
40 | Georgia | 70.561 | 155.56 | |
41 | Spain | 70.556 | 155.55 | |
42 | Azerbaijan | 70.484 | 155.39 | |
43 | Hungary | 70.443 | 155.30 | |
44 | Libya | 70.429 | 155.27 | |
45 | Luxembourg | 70.270 | 154.92 | |
46 | Tajikistan | 70.234 | 154.84 | |
47 | Portugal | 70.193 | 154.75 | |
48 | Lithuania | 70.153 | 154.66 | |
49 | Grenada | 70.139 | 154.63 | |
50 | Panama | 69.939 | 154.19 | |
51 | Ireland | 69.926 | 154.16 | |
52 | Canada | 69.767 | 153.81 | |
53 | Jordan | 69.649 | 153.55 | |
54 | St Vincent & Grenadines | 69.590 | 153.42 | |
55 | Belize | 69.377 | 152.95 | |
56 | Poland | 69.241 | 152.65 | |
57 | Macedonia | 69.209 | 152.58 | |
58 | Italy | 69.205 | 152.57 | |
59 | Jamaica | 69.064 | 152.26 | |
60 | Sweden | 69.064 | 152.26 | |
61 | Turkey | 69.046 | 152.22 | |
62 | Cuba | 69.037 | 152.20 | |
63 | Mexico | 69.023 | 152.17 | |
64 | Mongolia | 68.910 | 151.92 | |
65 | Uruguay | 68.873 | 151.84 | |
66 | Belgium | 68.801 | 151.68 | |
67 | Suriname | 68.778 | 151.63 | |
68 | Latvia | 68.778 | 151.63 | |
69 | Norway | 68.774 | 151.62 | |
70 | Netherlands | 68.746 | 151.56 | |
71 | Ukraine | 68.674 | 151.40 | |
72 | Guatemala | 68.579 | 151.19 | |
73 | Saint Lucia | 68.438 | 150.88 | |
74 | Armenia | 68.424 | 150.85 | |
75 | Nicaragua | 68.415 | 150.83 | |
76 | Vanuatu | 68.229 | 150.42 | |
77 | El Salvador | 68.220 | 150.40 | |
78 | Lebanon | 68.170 | 150.29 | |
79 | Ecuador | 68.166 | 150.28 | |
80 | Fiji | 68.048 | 150.02 | |
81 | Bolivia | 68.034 | 149.99 | |
82 | Dominican Rep. | 67.993 | 149.90 | |
83 | Denmark | 67.957 | 149.82 | |
84 | Costa Rica | 67.853 | 149.59 | |
85 | Tunisia | 67.726 | 149.31 | |
86 | Iran | 67.608 | 149.05 | |
87 | Turkmenistan | 67.563 | 148.95 | |
88 | Paraguay | 67.445 | 148.69 | |
89 | Peru | 67.440 | 148.68 | |
90 | Syria | 67.422 | 148.64 | |
91 | Guyana | 67.032 | 147.78 | |
92 | France | 66.782 | 147.23 | |
93 | Estonia | 66.732 | 147.12 | |
94 | Equatorial Guinea | 66.451 | 146.50 | |
95 | Romania | 66.401 | 146.39 | |
96 | Colombia | 66.370 | 146.32 | |
97 | Uzbekistan | 66.351 | 146.28 | |
98 | Kazakhstan | 66.265 | 146.09 | |
99 | Brazil | 66.093 | 145.71 | |
100 | Mauritius | 66.052 | 145.62 | |
101 | Iraq | 66.034 | 145.58 | |
102 | Lesotho | 65.966 | 145.43 | |
103 | Honduras | 65.834 | 145.14 | |
104 | Oman | 65.803 | 145.07 | |
105 | South Africa | 65.667 | 144.77 | |
106 | Kyrgyzstan | 65.413 | 144.21 | |
107 | Botswana | 65.045 | 143.40 | |
108 | Cameroon | 64.832 | 142.93 | |
109 | Morocco | 64.764 | 142.78 | |
110 | South Korea | 64.392 | 141.96 | |
111 | Mauritania | 64.179 | 141.49 | |
112 | Algeria | 63.639 | 140.30 | |
113 | Gabon | 62.845 | 138.55 | |
114 | Ghana | 62.491 | 137.77 | |
115 | Cape Verde | 62.296 | 137.34 | |
116 | Papua New Guinea | 62.251 | 137.24 | |
117 | Eswatini | 62.097 | 136.90 | |
118 | Djibouti | 62.015 | 136.72 | |
119 | Haiti | 61.698 | 136.02 | |
120 | Comoros | 61.044 | 134.58 | |
121 | Zimbabwe | 61.022 | 134.53 | |
122 | Brunei | 60.945 | 134.36 | |
123 | Sierra Leone | 60.854 | 134.16 | |
124 | Nigeria | 60.745 | 133.92 | |
125 | Malaysia | 60.682 | 133.78 | |
126 | China | 60.555 | 133.50 | |
127 | Angola | 60.387 | 133.13 | |
128 | Senegal | 60.373 | 133.10 | |
129 | Benin | 60.282 | 132.90 | |
130 | Mali | 60.078 | 132.45 | |
131 | Yemen | 59.802 | 131.84 | |
132 | Philippines | 59.715 | 131.65 | |
133 | Namibia | 59.584 | 131.36 | |
134 | Sudan | 59.407 | 130.97 | |
135 | Togo | 59.280 | 130.69 | |
136 | Guinea | 59.112 | 130.32 | |
137 | Japan | 59.017 | 130.11 | |
138 | Pakistan | 58.976 | 130.02 | |
139 | Singapore | 58.935 | 129.93 | |
140 | Thailand | 58.786 | 129.60 | |
141 | Côte d'Ivoire | 58.727 | 129.47 | |
142 | Laos | 58.436 | 128.83 | |
143 | Chad | 58.196 | 128.30 | |
144 | Niger | 57.933 | 127.72 | |
145 | Maldives | 57.647 | 127.09 | |
146 | São Tomé and Príncipe | 57.561 | 126.90 | |
147 | Burkina Faso | 57.456 | 126.67 | |
148 | Congo | 57.384 | 126.51 | |
149 | Tanzania | 57.293 | 126.31 | |
150 | Gambia | 57.071 | 125.82 | |
151 | Uganda | 57.007 | 125.68 | |
152 | Afghanistan | 56.935 | 125.52 | |
153 | Malawi | 56.681 | 124.96 | |
154 | Rwanda | 56.635 | 124.86 | |
155 | Myanmar | 56.354 | 124.24 | |
156 | Kenya | 56.264 | 124.04 | |
157 | Guinea-Bissau | 56.087 | 123.65 | |
158 | Mozambique | 55.955 | 123.36 | |
159 | Central African Rep. | 55.946 | 123.34 | |
160 | Zambia | 55.910 | 123.26 | |
161 | Cambodia | 55.742 | 122.89 | |
162 | Liberia | 55.533 | 122.43 | |
163 | Somalia | 55.375 | 122.08 | |
164 | Madagascar | 55.157 | 121.60 | |
165 | Burundi | 54.127 | 119.33 | |
166 | Congo | 53.501 | 117.95 | |
167 | Ethiopia | 53.057 | 116.97 | |
168 | India | 52.943 | 116.72 | |
169 | North Korea | 52.589 | 115.94 | |
170 | Indonesia | 52.467 | 115.67 | |
171 | Eritrea | 52.041 | 114.73 | |
172 | Timor-Leste | 51.950 | 114.53 | |
173 | Bhutan | 51.142 | 112.75 | |
174 | Vietnam | 50.725 | 111.83 | |
175 | Nepal | 50.476 | 111.28 | |
176 | Sri Lanka | 50.421 | 111.16 | |
177 | Bangladesh | 49.591 | 109.33 | |
— | world average | 61.997 | 136.68 |
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Preventive Nutrition is a branch of nutrition science with the goal of preventing, delaying, and/or reducing the impacts of disease and disease-related complications. It is concerned with a high level of personal well-being, disease prevention, and diagnosis of recurring health problems or symptoms of discomfort which are often precursors to health issues. The overweight and obese population numbers have increased over the last 40 years and numerous chronic diseases are associated with obesity. Preventive nutrition may assist in prolonging the onset of non-communicable diseases and may allow adults to experience more "healthy living years." There are various ways of educating the public about preventive nutrition. Information regarding preventive nutrition is often communicated through public health forums, government programs and policies, or nutritional education. For example, in the United States, preventive nutrition is taught to the public through the use of the food pyramid or MyPlate initiatives.
Obesity in Thailand has been flagged as a major source of health concern, with 32% of the population identifying as overweight and 9% obese. With reference to 2016 data from the World Health Organization (WHO), Thailand has one of the highest incidence of overweight citizens in the South East Asian region, second to only Malaysia. The Thai National Health Examination Surveys (NHES) found that obesity in Thailand more than doubled during the period 1991-2014. This spike in obesity levels has been largely attributed to increased access to junk food, and unhealthy switches from active to sedentary lifestyles. These factors are closely linked to economic growth in the country.
According to the World Health Organization (2015), the "worldwide population of overweight and obese adults increased between 1980 and 2013 from 30 percent to 38 percent in women, and 29 percent to 37 percent in men". The prevalence of obesity continues to rise in all age groups in this developing country.
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: CS1 maint: numeric names: authors list (link)The body weight and height of respondents with a BMI of 18.5-24.9 kg/m2 can be considered as the average normal body weight and height of the adult population in Russia, which amounted to 70.6 kg and 175.4 cm for men, and 60.2 kg and 164 cm for women, respectively.