BMI of 40 — What Does It Mean?

"BMI Meaning" Calculator
What does BMI of
mean

BMI of 40 — is it good or bad?

Answer

BMI 40 for Males and Females means
Morbid Obesity/Class III
BMI 40 is 15.1 points more than Healthy BMI Range ends (18.5 - 24.9)
Note: BMI is a general screening tool and does not diagnose body fatness or health. Consult a healthcare professional for a personal assessment. The scale is for adults; children and teenagers up to 19 are read against a WHO reference for their age and sex.
16
17
18.5
25
30
35
40
40
BMI 40 on the Body Mass Index Scale

BMI 40: Corresponding Weight and Height

BMIHeight and Weight (cm/kg)Height and Weight (ft/in/lbs)
40155 cm ≈96 kg≈5'1" ≈212 lbs
40156 cm ≈97 kg≈5'1" ≈212 lbs
40157 cm ≈99 kg≈5'2" ≈219 lbs
40158 cm ≈100 kg≈5'2" ≈219 lbs
40159 cm ≈101 kg≈5'3" ≈226 lbs
40160 cm ≈102 kg≈5'3" ≈226 lbs
40161 cm ≈104 kg≈5'3" ≈226 lbs
40162 cm ≈105 kg≈5'4" ≈233 lbs
40163 cm ≈106 kg≈5'4" ≈233 lbs
40164 cm ≈108 kg≈5'5" ≈240 lbs
40165 cm ≈109 kg≈5'5" ≈240 lbs
40166 cm ≈110 kg≈5'5" ≈240 lbs
40167 cm ≈112 kg≈5'6" ≈248 lbs
40168 cm ≈113 kg≈5'6" ≈248 lbs
40169 cm ≈114 kg≈5'7" ≈255 lbs
40170 cm ≈116 kg≈5'7" ≈255 lbs
40171 cm ≈117 kg≈5'7" ≈255 lbs
40172 cm ≈118 kg≈5'8" ≈263 lbs
40173 cm ≈120 kg≈5'8" ≈263 lbs
40174 cm ≈121 kg≈5'9" ≈271 lbs
40175 cm ≈123 kg≈5'9" ≈271 lbs
40176 cm ≈124 kg≈5'9" ≈271 lbs
40177 cm ≈125 kg≈5'10" ≈279 lbs
40178 cm ≈127 kg≈5'10" ≈279 lbs
40179 cm ≈128 kg≈5'10" ≈279 lbs
40180 cm ≈130 kg≈5'11" ≈287 lbs
40181 cm ≈131 kg≈5'11" ≈287 lbs
40182 cm ≈132 kg≈6' ≈295 lbs
40183 cm ≈134 kg≈6' ≈295 lbs
40184 cm ≈135 kg≈6' ≈295 lbs
40185 cm ≈137 kg≈6'1" ≈303 lbs

BMI Table

For adults aged 18 and over, BMI values are grouped* into the following weight status categories:

BMIWeight Category
< 16Underweight/Severe thinness
16 - 16.9Underweight/Moderate thinness
17 - 18.4Underweight/Mild thinness
18.5 - 24.9Normal/Healthy Weight
25 - 29.9Overweight/Pre-obese
30 - 34.9Obese/Class I
35 - 39.9Obese/Class II
≥ 40Morbid Obesity/Class III

*according to The World Health Organization (WHO)

Related Calculations

See Also

About "BMI Meaning" Calculator

This calculator will help you to find out what the given BMI means. For example, it can help you find out BMI of 40 — is it good or bad? (The answer is: Morbid Obesity/Class III). Enter Body Mass Index (e.g. 40) and hit the 'Find out' button.
Recalculate with different values ↑

BMI Table

BMICategory
36Obese/Class II
36.2Obese/Class II
36.3Obese/Class II
36.4Obese/Class II
36.6Obese/Class II
36.8Obese/Class II
36.9Obese/Class II
37Obese/Class II
37.1Obese/Class II
38Obese/Class II
38.1Obese/Class II
38.5Obese/Class II
38.9Obese/Class II
39Obese/Class II
39.9Obese/Class II
40Morbid Obesity/Class III
41Morbid Obesity/Class III
41.2Morbid Obesity/Class III
41.3Morbid Obesity/Class III
41.7Morbid Obesity/Class III
42Morbid Obesity/Class III
42.5Morbid Obesity/Class III
42.7Morbid Obesity/Class III
42.8Morbid Obesity/Class III
42.9Morbid Obesity/Class III
43Morbid Obesity/Class III
43.1Morbid Obesity/Class III
43.3Morbid Obesity/Class III
43.7Morbid Obesity/Class III
43.8Morbid Obesity/Class III

FAQ

BMI of 40 — is it good or bad?

BMI 40 for Males and Females means Morbid Obesity/Class III

Is BMI of 40 dangerous?

BMI of 40 falls into the "Morbid Obesity/Class III" category. A BMI above 24.9 may indicate excess body weight. Consult a healthcare professional for personalized advice.

What weight gives a BMI of 40?

BMI is weight divided by height in metres squared, so it names a weight only once the height is fixed: at 170 cm (5 ft 7 in) a BMI of 40 means about 254.9 lb (115.6 kg). A taller person reaches the same BMI at a proportionally higher weight.

Does a BMI of 40 mean the same for men and women?

Yes — the WHO adult scale has no separate cut-offs by sex, so a BMI of 40 reads as "Morbid Obesity/Class III" for both. Age is what changes it: the adult table starts at 18, while children and teenagers aged 5–19 are compared with age- and sex-specific reference values instead.

See Also