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    BMI of 31 — What Does It Mean?

    "BMI Meaning" Calculator
    What does BMI of
    mean

    BMI of 31 — is it good or bad?

    Answer

    BMI 31 for Males and Females means
    Obese/Class I

    WHO adult scale (18+) · not for pregnancy · the same cut-offs for women and men · BMI does not tell muscle from fat

    UnderHealthyOverObese
    18.5
    25
    30
    35
    40
    31
    1445
    ↑ BMI

    6 above the healthy range (18.5 ≤ BMI < 25)

    WHO BMI categories (adults)

    BMIWeight Category
    BMI < 16Underweight/Severe thinness
    16 ≤ BMI < 17Underweight/Moderate thinness
    17 ≤ BMI < 18.5Underweight/Mild thinness
    18.5 ≤ BMI < 25Normal/Healthy Weight
    25 ≤ BMI < 30Overweight/Pre-obese
    30 ≤ BMI < 35Obese/Class I
    35 ≤ BMI < 40Obese/Class II
    BMI ≥ 40Morbid Obesity/Class III

    Screening, not a diagnosis. Children and teenagers 5–19 are read against WHO BMI-for-age; for many Asian populations WHO names lower action points, 23 and 27.5. Who the BMI scale applies to ↗ · sources: WHO, pregnancy — NHS

    BMI 31 at common heights

    cm · kgft/in · lbs
    150 cm · 69.8 kg
    ≈ 70 kg · BMI 31.11    		4'11" · 153.5 lbs
    ≈ 154 lbs · BMI 31.1
    155 cm · 74.5 kg
    ≈ 74 kg · BMI 30.8    		5'1" · 164.1 lbs
    ≈ 164 lbs · BMI 30.98
    160 cm · 79.4 kg
    ≈ 79 kg · BMI 30.86    		5'3" · 175 lbs
    165 cm · 84.4 kg
    ≈ 84 kg · BMI 30.85    		5'5" · 186.3 lbs
    ≈ 186 lbs · BMI 30.95
    170 cm · 89.6 kg
    ≈ 90 kg · BMI 31.14    		5'7" · 198 lbs
    175 cm · 94.9 kg
    ≈ 95 kg · BMI 31.02    		5'9" · 209.9 lbs
    ≈ 210 lbs · BMI 31.01
    180 cm · 100.4 kg
    ≈ 100 kg · BMI 30.86    		5'11" · 222.3 lbs
    ≈ 222 lbs · BMI 30.96
    185 cm · 106.1 kg
    ≈ 106 kg · BMI 30.97    		6'1" · 235 lbs
    190 cm · 111.9 kg
    ≈ 112 kg · BMI 31.02    		6'3" · 248 lbs

    ft/in — nearest inch to the height in cm; the weight is computed for that inch.

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    What does BMI of 31 mean?. BMI of 31 means Obese/Class I for males and females. Find out if 31 BMI is underweight, normal, overweight, or obese on the WHO scale.
    https://calculat.io/en/weight/what-bmi-mean/31/generated.jpgCopy

    BMI Table

    BMICategory
    29.4Overweight/Pre-obese
    29.5Overweight/Pre-obese
    29.6Overweight/Pre-obese
    29.7Overweight/Pre-obese
    29.8Overweight/Pre-obese
    29.9Overweight/Pre-obese
    30Obese/Class I
    30.1Obese/Class I
    30.2Obese/Class I
    30.3Obese/Class I
    30.5Obese/Class I
    30.6Obese/Class I
    30.7Obese/Class I
    30.8Obese/Class I
    30.9Obese/Class I
    31Obese/Class I
    31.1Obese/Class I
    31.2Obese/Class I
    31.3Obese/Class I
    31.4Obese/Class I
    31.5Obese/Class I
    31.6Obese/Class I
    31.7Obese/Class I
    31.8Obese/Class I
    31.9Obese/Class I
    32Obese/Class I
    32.1Obese/Class I
    32.2Obese/Class I
    32.3Obese/Class I
    32.4Obese/Class I
    Recalculate with different values ↑

    FAQ

    BMI of 31 — is it good or bad?

    BMI 31 for Males and Females means Obese/Class I

    Is BMI of 31 dangerous?

    BMI of 31 falls into the "Obese/Class I" category. A BMI of 25 or more may indicate excess body weight. Consult a healthcare professional for personalized advice.

    What weight gives a BMI of 31?

    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 31 means about 197.5 lb (89.6 kg). A taller person reaches the same BMI at a proportionally higher weight.

    Does a BMI of 31 mean the same for men and women?

    Yes — the WHO adult scale has no separate cut-offs by sex, so a BMI of 31 reads as "Obese/Class I" 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