BMI of 13 — What Does It Mean?

"BMI Meaning" Calculator
What does BMI of
mean

BMI of 13 — is it good or bad?

Answer

BMI 13 for Males and Females means
Underweight/Severe thinness
BMI 13 is 5.5 points less than Healthy BMI Range starts (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
13
BMI 13 on the Body Mass Index Scale

BMI 13: Corresponding Weight and Height

BMIHeight and Weight (cm/kg)Height and Weight (ft/in/lbs)
13155 cm ≈31 kg≈5'1" ≈69 lbs
13156 cm ≈32 kg≈5'1" ≈69 lbs
13157 cm ≈32 kg≈5'2" ≈71 lbs
13158 cm ≈32 kg≈5'2" ≈71 lbs
13159 cm ≈33 kg≈5'3" ≈73 lbs
13160 cm ≈33 kg≈5'3" ≈73 lbs
13161 cm ≈34 kg≈5'3" ≈73 lbs
13162 cm ≈34 kg≈5'4" ≈76 lbs
13163 cm ≈35 kg≈5'4" ≈76 lbs
13164 cm ≈35 kg≈5'5" ≈78 lbs
13165 cm ≈35 kg≈5'5" ≈78 lbs
13166 cm ≈36 kg≈5'5" ≈78 lbs
13167 cm ≈36 kg≈5'6" ≈81 lbs
13168 cm ≈37 kg≈5'6" ≈81 lbs
13169 cm ≈37 kg≈5'7" ≈83 lbs
13170 cm ≈38 kg≈5'7" ≈83 lbs
13171 cm ≈38 kg≈5'7" ≈83 lbs
13172 cm ≈38 kg≈5'8" ≈86 lbs
13173 cm ≈39 kg≈5'8" ≈86 lbs
13174 cm ≈39 kg≈5'9" ≈88 lbs
13175 cm ≈40 kg≈5'9" ≈88 lbs
13176 cm ≈40 kg≈5'9" ≈88 lbs
13177 cm ≈41 kg≈5'10" ≈91 lbs
13178 cm ≈41 kg≈5'10" ≈91 lbs
13179 cm ≈42 kg≈5'10" ≈91 lbs
13180 cm ≈42 kg≈5'11" ≈93 lbs
13181 cm ≈43 kg≈5'11" ≈93 lbs
13182 cm ≈43 kg≈6' ≈96 lbs
13183 cm ≈44 kg≈6' ≈96 lbs
13184 cm ≈44 kg≈6' ≈96 lbs
13185 cm ≈44 kg≈6'1" ≈99 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)

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 13 — is it good or bad? (The answer is: Underweight/Severe thinness). Enter Body Mass Index (e.g. 13) and hit the 'Find out' button.

BMI Table

BMICategory
10.7Underweight/Severe thinness
11Underweight/Severe thinness
11.2Underweight/Severe thinness
11.4Underweight/Severe thinness
11.5Underweight/Severe thinness
11.7Underweight/Severe thinness
11.8Underweight/Severe thinness
11.9Underweight/Severe thinness
12Underweight/Severe thinness
12.4Underweight/Severe thinness
12.5Underweight/Severe thinness
12.6Underweight/Severe thinness
12.7Underweight/Severe thinness
12.8Underweight/Severe thinness
12.9Underweight/Severe thinness
13Underweight/Severe thinness
13.1Underweight/Severe thinness
13.2Underweight/Severe thinness
13.3Underweight/Severe thinness
13.4Underweight/Severe thinness
13.5Underweight/Severe thinness
13.6Underweight/Severe thinness
13.7Underweight/Severe thinness
13.8Underweight/Severe thinness
13.9Underweight/Severe thinness
14Underweight/Severe thinness
14.1Underweight/Severe thinness
14.2Underweight/Severe thinness
14.3Underweight/Severe thinness
14.4Underweight/Severe thinness

FAQ

BMI of 13 — is it good or bad?

BMI 13 for Males and Females means Underweight/Severe thinness

Is BMI of 13 dangerous?

BMI of 13 falls into the "Underweight/Severe thinness" category. A BMI below 18.5 may indicate insufficient body weight. Consult a healthcare professional for personalized advice.

What weight gives a BMI of 13?

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 13 means about 82.9 lb (37.6 kg). A taller person reaches the same BMI at a proportionally higher weight.

Does a BMI of 13 mean the same for men and women?

Yes — the WHO adult scale has no separate cut-offs by sex, so a BMI of 13 reads as "Underweight/Severe thinness" 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.