BMI 계산기

단위 체계

BMI 기준

키 센티미터(cm)

체중 kg

나이 (선택, 체지방 추정) 세

성별

목표 BMI (선택)

BMI: -

체중 분류: -

건강 체중 구간: -

이상 체중 (BMI 22): -

정상 범위까지 거리: -

폰더럴 지수: -

추정 체지방률: -

목표 체중: -

건강 조언: -

계산 과정: -

BMI Calculator

Body Mass Index (BMI) is a common adult screening index for weight status. This tool supports metric/imperial units and China, WHO, Japan, Singapore cut-offs, plus healthy weight range, ideal weight, Ponderal index, and reverse target-weight calculation.

Formula

BMI = weight(kg) ÷ height(m)². Example: 170 cm, 65 kg → 65 ÷ 1.70² ≈ 22.5.

Healthy weight range = normal BMI bounds × height². China: about 18.5×h² to 23.9×h².

Ponderal index = weight(kg) ÷ height(m)³.

China vs WHO

China (WS/T 428): overweight ≥24, obese ≥28
WHO: overweight ≥25, obese ≥30
Singapore (Asian): healthy to 22.9, high risk ≥27.5

Notes

For adults ≈18+; children need growth-chart percentiles.
Not ideal alone for pregnancy, athletes with high muscle mass, or severe edema/sarcopenia.
BMI does not separate fat vs muscle or show fat distribution.

Disclaimer: For self-check only—not medical advice.