Body Mass Index (BMI)
BMI uses a mathematical formula
that takes into account both a person's height and weight. BMI equals a
person's weight in kilograms divided by height in meters squared. (BMI=kg/m2).
Risk of Associated Disease According to BMI and Waist Size
|
BMI
|
|
Waist
less than or equal to
40 in. (men)
or
35 in.
(women)
|
Waist
greater than
40 in. (men)
or
35 in.
(women)
|
18.5
or less
|
Underweight
|
--
|
N/A
|
18.5
- 24.9
|
Normal
|
--
|
N/A
|
25.0
- 29.9
|
Overweight
|
Increased
|
High
|
30.0
- 34.9
|
Obese
|
High
|
Very
High
|
35.0
- 39.9
|
Obese
|
Very
High
|
Very
High
|
40
or greater
|
Extremely
Obese
|
Extremely
High
|
Extremely
High
|
One variable BMI fails to consider is lean body mass. It is possible for a
healthy, muscular individual with very low body fat to be classified obese
using the BMI formula..
BMI
and Health
BMI
|
Height
(in)
|
58 |
59
|
60
|
61
|
62
|
63
|
64
|
65
|
66
|
67
|
68
|
69
|
70
|
71
|
72
|
73
|
74
|
75
|
76
|
Weight
(lbs)
|
4'10"
|
4'11"
|
5'0"
|
5'1"
|
5'2"
|
5'3"
|
5'4"
|
5'5"
|
5'6"
|
5'7"
|
5'8"
|
5'9"
|
5'10"
|
5'11"
|
6'0"
|
6'1"
|
6'2"
|
6'3"
|
6'4"
|
100
|
21
|
20
|
20
|
19
|
18
|
18
|
17
|
17
|
16
|
16
|
15
|
15
|
14
|
14
|
14
|
13
|
13
|
13
|
12
|
105
|
22
|
21
|
21
|
20
|
19
|
19
|
18
|
18
|
17
|
16
|
16
|
16
|
15
|
15
|
14
|
14
|
14
|
13
|
13
|
110
|
23
|
22
|
22
|
21
|
20
|
20
|
19
|
18
|
18
|
17
|
17
|
16
|
16
|
15
|
15
|
15
|
14
|
14
|
13
|
115
|
24
|
23
|
23
|
22
|
21
|
20
|
20
|
19
|
19
|
18
|
18
|
17
|
17
|
16
|
16
|
15
|
15
|
14
|
14
|
120
|
25
|
24
|
23
|
23
|
22
|
21
|
21
|
20
|
19
|
19
|
18
|
18
|
17
|
17
|
16
|
16
|
15
|
15
|
15
|
125
|
26
|
25
|
24
|
24
|
23
|
22
|
22
|
21
|
20
|
20
|
19
|
18
|
18
|
17
|
17
|
17
|
16
|
16
|
15
|
130
|
27
|
26
|
25
|
25
|
24
|
23
|
22
|
22
|
21
|
20
|
20
|
19
|
19
|
18
|
18
|
17
|
17
|
16
|
16
|
135
|
28
|
27
|
26
|
26
|
25
|
24
|
23
|
23
|
22
|
21
|
21
|
20
|
19
|
19
|
18
|
18
|
17
|
17
|
16
|
140
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
23
|
23
|
22
|
21
|
21
|
20
|
20
|
19
|
19
|
18
|
18
|
17
|
145
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
23
|
23
|
22
|
21
|
21
|
20
|
20
|
19
|
19
|
18
|
18
|
150
|
31
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
23
|
22
|
22
|
21
|
20
|
20
|
19
|
19
|
18
|
155
|
32
|
31
|
30
|
29
|
28
|
28
|
27
|
26
|
25
|
24
|
24
|
23
|
22
|
22
|
21
|
20
|
20
|
19
|
19
|
160
|
34
|
32
|
31
|
30
|
29
|
28
|
28
|
27
|
26
|
25
|
24
|
24
|
23
|
22
|
22
|
21
|
21
|
20
|
20
|
165
|
35
|
33
|
32
|
31
|
30
|
29
|
28
|
28
|
27
|
26
|
25
|
24
|
24
|
23
|
22
|
22
|
21
|
21
|
20
|
170
|
36
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
23
|
22
|
22
|
21
|
21
|
175
|
37
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
23
|
23
|
22
|
21
|
180
|
38
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
23
|
23
|
22
|
185
|
39
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
23
|
23
|
190
|
40
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
23
|
195
|
41
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
200
|
42
|
40
|
39
|
38
|
37
|
36
|
34
|
33
|
32
|
31
|
30
|
30
|
29
|
28
|
27
|
26
|
26
|
25
|
24
|
205
|
43
|
41
|
40
|
39
|
38
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
29
|
28
|
27
|
26
|
26
|
25
|
210
|
44
|
43
|
41
|
40
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
29
|
28
|
27
|
26
|
26
|
215
|
45
|
44
|
42
|
41
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
28
|
27
|
26
|
220
|
46
|
45
|
43
|
42
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
28
|
28
|
27
|
225
|
47
|
46
|
44
|
43
|
41
|
40
|
39
|
38
|
36
|
35
|
34
|
33
|
32
|
31
|
31
|
30
|
29
|
28
|
27
|
230
|
48
|
47
|
45
|
44
|
42
|
41
|
40
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
30
|
29
|
28
|
235
|
49
|
48
|
46
|
44
|
43
|
42
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
29
|
240
|
50
|
49
|
47
|
45
|
44
|
43
|
41
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
29
|
245
|
51
|
50
|
48
|
46
|
45
|
43
|
42
|
41
|
40
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
32
|
31
|
30
|
250
|
52
|
51
|
49
|
47
|
46
|
44
|
43
|
42
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
30
|
255
|
53
|
52
|
50
|
48
|
47
|
45
|
44
|
43
|
41
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
31
|
260
|
54
|
53
|
51
|
49
|
48
|
46
|
45
|
43
|
42
|
41
|
40
|
38
|
37
|
36
|
35
|
34
|
33
|
33
|
32
|
265
|
56
|
54
|
52
|
50
|
49
|
47
|
46
|
44
|
43
|
42
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
32
|
270
|
57
|
55
|
53
|
51
|
49
|
48
|
46
|
45
|
44
|
42
|
41
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
33
|
275
|
58
|
56
|
54
|
52
|
50
|
49
|
47
|
46
|
44
|
43
|
42
|
41
|
40
|
38
|
37
|
36
|
35
|
34
|
34
|
280
|
59
|
57
|
55
|
53
|
51
|
50
|
48
|
47
|
45
|
44
|
43
|
41
|
40
|
39
|
38
|
37
|
36
|
35
|
34
|
285
|
60
|
58
|
56
|
54
|
52
|
51
|
49
|
48
|
46
|
45
|
43
|
42
|
41
|
40
|
39
|
38
|
37
|
36
|
35
|
290
|
61
|
59
|
57
|
55
|
53
|
51
|
50
|
48
|
47
|
46
|
44
|
43
|
42
|
41
|
39
|
38
|
37
|
36
|
35
|
295
|
62
|
60
|
58
|
56
|
54
|
52
|
51
|
49
|
48
|
46
|
45
|
44
|
42
|
41
|
40
|
39
|
38
|
37
|
36
|
300
|
63
|
61
|
59
|
57
|
55
|
53
|
52
|
50
|
49
|
47
|
46
|
44
|
43
|
42
|
41
|
40
|
39
|
38
|
37
|