BMI Calculator

BMI for a 231 pound, 5′1″ man or woman
ft
in
lbs
BMI = 43.64

Body Mass Index, or BMI, is used to estimate if a person is overweight or underweight.

It is calculated the same way for men and women.

These are the generally accepted classifications:

  • Underweight: less than 18.5
  • Normal weight: 18.5-25
  • Overweight: 25-30
  • Obese: BMI of 30 or greater

What's the Body Mass Index? How much?

BMI chart for a 5 foot 1 inch man or woman, by weight in pounds:

Weight BMI
68 lbs 12.85
73 lbs 13.79
78 lbs 14.74
83 lbs 15.68
88 lbs 16.63
93 lbs 17.57
98 lbs 18.51
103 lbs 19.46
108 lbs 20.40
113 lbs 21.35
118 lbs 22.29
123 lbs 23.24
128 lbs 24.18
133 lbs 25.13
138 lbs 26.07
143 lbs 27.02
148 lbs 27.96
153 lbs 28.91
158 lbs 29.85
163 lbs 30.80
168 lbs 31.74
173 lbs 32.68
178 lbs 33.63
183 lbs 34.57
188 lbs 35.52
193 lbs 36.46
198 lbs 37.41
203 lbs 38.35
208 lbs 39.30
213 lbs 40.24
218 lbs 41.19
223 lbs 42.13
228 lbs 43.08
233 lbs 44.02
238 lbs 44.96
243 lbs 45.91
248 lbs 46.85
253 lbs 47.80
258 lbs 48.74
263 lbs 49.69

Mean BMI for Selected Countries

Both sexes, ages 18+. Source: World Health Organization, 2016.

Country BMI
Nauru 32.5
Egypt 29.4
United States 29.1
Mexico 27.9
United Kingdom 27.5
Germany 27.4
Australia 27.4
Canada 27.3
South Africa 27.0
Russia 26.7
Spain 26.6
Brazil 26.6
Italy 26.3
Netherlands 26.1
France 25.6
China 24.0
Japan 22.8
India 21.8