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Biology > BMI

Body Mass Index is a number calculated from an individual’s weight and height.

This chart can be used to determine whether a person is within, or outside of, a normal weight range.

Height (feet/inches) → 4'10 5'0 5'2 5'4 5'6 5'8 5'10 6'0 6'2 6'4
Weight
(stone/pounds) ↓
7st 0 20.6 19.2 18.0 16.9 15.9 15.0 14.1 13.3 12.6 12.0
7st 7 22.0 20.6 19.3 18.1 17.0 16.0 15.1 14.3 13.5 12.8
8st 0 23.5 22.0 20.6 19.3 18.1 17.1 16.1 15.2 14.4 13.7
8st 7 25.0 23.3 21.8 20.5 19.3 18.2 17.1 16.2 15.3 14.5
9st 0 26.4 24.7 23.1 21.7 20.4 19.2 18.1 17.2 16.2 15.4
9st 7 27.9 26.1 24.4 22.9 21.5 20.3 19.2 18.1 17.1 16.2
10st 0 29.4 27.4 25.7 24.1 22.7 21.4 20.2 19.1 18.0 17.1
10st 7 30.8 28.8 27.0 25.3 23.8 22.4 21.2 20.0 18.9 18.0
11st 0 32.3 30.2 28.3 26.5 24.9 23.5 22.2 21.0 19.8 18.8
11st 7 33.8 31.6 29.6 27.7 26.1 24.6 23.2 21.9 20.7 19.7
12st 0 35.2 32.9 30.8 28.9 27.2 25.6 24.2 22.9 21.6 20.5
12st 7 36.7 34.3 32.1 30.1 28.3 26.7 25.2 23.8 22.5 21.4
13st 0 38.2 35.7 33.4 31.4 29.5 27.8 26.2 24.8 23.5 22.2
13st 7 39.6 37.0 34.7 32.6 30.6 28.8 27.2 25.7 24.4 23.1
14st 0 41.1 38.4 36.0 33.8 31.7 29.9 28.2 26.7 25.3 23.9
14st 7 42.6 39.8 37.3 35.0 32.9 31.0 29.2 27.6 26.2 24.8
15st 0 44.0 41.2 38.5 36.2 34.0 32.0 30.2 28.6 27.1 25.7
15st 7 45.5 42.5 39.8 37.4 35.2 33.1 31.2 29.5 28.0 26.5
16st 0 47.0 43.9 41.1 38.6 36.3 34.2 32.3 30.5 28.9 27.4
16st 7 48.5 45.3 42.4 39.8 37.4 35.2 33.3 31.4 29.8 28.2
17st 0 49.9 46.6 43.7 41.0 38.6 36.3 34.3 32.4 30.7 29.1
17st 7 51.4 48.0 45.0 42.2 39.7 37.4 35.3 33.3 31.6 29.9
18st 0 52.9 49.4 46.3 43.4 40.8 38.5 36.3 34.3 32.5 30.8
18st 7 54.3 50.8 47.5 44.6 42.0 39.5 37.3 35.3 33.4 31.6
19st 0 55.8 52.1 48.8 45.8 43.1 40.6 38.3 36.2 34.3 32.5
19st 7 57.3 53.5 50.1 47.0 44.2 41.7 39.3 37.2 35.2 33.3
20st 0 58.7 54.9 51.4 48.2 45.4 42.7 40.3 38.1 36.1 34.2

BMI Less than 20 - Under Weight

BMI 20-25 - Normal Weight

BMI 25-30 - Over Weight

BMI 30-40 - Obese

BMI Over 40 - Severely Obese