Body Mass Index (BMI)

This is an Informatics service

Body Mass Index (BMI) is a tool for indicating weight status. The BMI table on the right is for adults over 20 years old. BMI is defined as weight in kilograms divided by the square of height in metres. For example, a person who weighs 72 kg and whose height is 1.77 m will have a BMI of 23, ie:

BMI = 72 / 1.772 = 23

As BMI increases the risk of some diseases and death increases. For further information see the World Health Organisation and the Health Profile of England. The relationship between height and weight for each BMI category is further illustrated by the chart and metric or imperial tables below.

  
CategoryBMI
Underweight  Below 18.5
Normal18.5 - 24.9
Pre-obese25.0 - 29.9
Obese30.0 - 39.9
Very obeseAbove 40


 BMI  18.5  25  30  40 
Height
(cm)		Weight
(kg)
 150  41.6  56.3  67.5  90 
 151  42.2  57  68.4  91.2 
 152  42.7  57.8  69.3  92.4 
 153  43.3  58.5  70.2  93.6 
 154  43.9  59.3  71.1  94.9 
 155  44.4  60.1  72.1  96.1 
 156  45  60.8  73  97.3 
 157  45.6  61.6  73.9  98.6 
 158  46.2  62.4  74.9  99.9 
 159  46.8  63.2  75.8  101.1 
 160  47.4  64  76.8  102.4 
 161  48  64.8  77.8  103.7 
 162  48.6  65.6  78.7  105 
 163  49.2  66.4  79.7  106.3 
 164  49.8  67.2  80.7  107.6 
 165  50.4  68.1  81.7  108.9 
 166  51  68.9  82.7  110.2 
  
 BMI  18.5  25  30  40 
Height
(cm)		Weight
(kg)
 167  51.6  69.7  83.7  111.6 
 168  52.2  70.6  84.7  112.9 
 169  52.8  71.4  85.7  114.2 
 170  53.5  72.3  86.7  115.6 
 171  54.1  73.1  87.7  117 
 172  54.7  74  88.8  118.3 
 173  55.4  74.8  89.8  119.7 
 174  56  75.7  90.8  121.1 
 175  56.7  76.6  91.9  122.5 
 176  57.3  77.4  92.9  123.9 
 177  58  78.3  94  125.3 
 178  58.6  79.2  95.1  126.7 
 179  59.3  80.1  96.1  128.2 
 180  59.9  81  97.2  129.6 
 181  60.6  81.9  98.3  131 
 182  61.3  82.8  99.4  132.5 
 183  62  83.7  100.5  134 
  
 BMI  18.5  25  30  40 
Height
(cm)		Weight
(kg)
 184  62.6  84.6  101.6  135.4 
 185  63.3  85.6  102.7  136.9 
 186  64  86.5  103.8  138.4 
 187  64.7  87.4  104.9  139.9 
 188  65.4  88.4  106  141.4 
 189  66.1  89.3  107.2  142.9 
 190  66.8  90.3  108.3  144.4 
 191  67.5  91.2  109.4  145.9 
 192  68.2  92.2  110.6  147.5 
 193  68.9  93.1  111.7  149 
 194  69.6  94.1  112.9  150.5 
 195  70.3  95.1  114.1  152.1 
 196  71.1  96  115.2  153.7 
 197  71.8  97  116.4  155.2 
 198  72.5  98  117.6  156.8 
 199  73.3  99  118.8  158.4 
 200  74  100  120  160 


BMI Chart

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