BMI calculator
Weight over height squared. Cutoffs change by region — pick the standard your clinic uses.
默认为您所在地区。可切换以比较其他标准。
Overweight ≥25, obesity ≥30.
kg
cm
结果
24.2
BMI
Normal range
- Band on this standard18.5–24.9
Normal range
BMI does not separate fat from muscle. Athletes and older adults should read it with a clinician.
公式
BMI = kg ÷ m²BMI = (lbs ÷ in²) × 703
计算方法
- Enter height and weight in metric or imperial units.
- BMI is weight divided by height squared (×703 if imperial).
- Read the category for the selected regional cutoff.
常见问题
Why is Asian overweight 23, not 25?
WHO expert groups noted higher metabolic risk at lower BMI in many Asian populations. India, Japan, and several ASEAN guidelines use 23/25.
Is BMI a diagnosis?
No. It is a screening index. Waist, body fat, and clinical history matter more for decisions.