Merck Manual

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Determining Body Mass Index

Determining Body Mass Index

Height

Weight (Pounds)

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

260

4'10"

21

23

25

27

29

31

33

36

38

40

42

44

46

48

50

52

54

4'11"

20

22

24

26

28

30

32

34

36

38

40

42

45

47

49

51

53

5'0"

20

21

23

25

27

29

31

33

35

37

39

41

43

45

47

49

51

5'1"

19

21

23

25

26

28

30

32

34

36

38

40

42

43

45

47

49

5'2"

18

20

22

24

26

27

29

31

33

35

37

38

40

43

44

46

48

5'3"

18

19

21

23

25

27

28

30

32

34

35

37

39

41

43

44

46

5'4"

17

19

21

22

24

26

27

29

31

33

34

36

38

39

41

43

45

5'5"

17

18

20

22

23

25

27

28

30

32

33

35

37

38

40

42

43

5'6"

16

18

19

21

23

24

26

27

29

31

32

34

36

37

39

40

42

5'7"

16

17

19

20

22

23

25

27

28

30

31

33

34

36

38

39

41

5'8"

15

17

18

20

21

23

24

26

27

29

30

32

33

35

36

38

40

5'9"

15

16

18

19

21

22

24

25

27

28

30

31

32

34

35

37

38

5'10"

14

16

17

19

20

22

23

24

26

27

29

30

32

33

34

36

37

5'11"

14

15

17

18

20

21

22

24

25

26

28

29

31

32

33

35

36

6'0"

13

15

16

18

19

20

22

23

24

26

27

28

30

31

33

34

35

6'1"

13

15

16

17

18

20

21

22

24

25

26

28

29

30

32

33

34

6'2"

12

14

15

17

18

19

21

22

23

24

26

27

28

30

31

32

33

6'3"

12

14

15

16

17

19

20

21

22

24

25

26

27

29

30

31

33

6'4"

12

13

15

16

17

18

19

21

22

23

24

26

27

28

29

30

32

6'5"

12

13

14

15

17

18

19

20

21

23

24

25

26

27

29

30

31

6'6"

12

13

14

15

16

17

19

20

21

22

23

24

25

27

28

29

30

Categories of weight are defined as follows:

  • Underweight = less than 18.5

  • Normal = 18.5 to 24.9 (18 to 22.9 for Asians)

  • Overweight = 25 to 29.9 (23 to 29.9 for Asians)

  • Obese = 30 to 39.9

  • Obese, severe (morbid obesity) = 40 or higher