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BMI Calculator

Enter your height and weight to instantly calculate your BMI, weight category, and normal weight range.

BMI 계산기, 체질량지수 계산기, 비만도 계산기, BMI calculator, body mass index
Created
2026.08.21
Updated
2026.09.19
InputFill in both fields, then calculate
Height100 – 250
cm
Weight20 – 300
kg
Enter also calculates
ResultNo result yet
Enter your height and weight and press Calculate BMI — your category and position on the scale will show up here.

Formula

Example — 170cm, 66kg

Body mass index is your weight divided by height (m) squaredBMI=wh2. Since height is entered in cm, it is divided by 100 to convert to meters.

BMI=wh2(1)
Formula=w · h−2
Substitute=66 · 1.70−2
Result=22.8kg/m2
SymbolMeaningUnitExample
wWeightkg66
hHeight — cm divided by 100m1.70
BMIBody mass index — formula (1)kg/m222.8

BMI only uses height and weight, so it can't account for muscle mass, body fat distribution, age, or sex. Highly muscular people may score higher than their body fat would suggest — treat the category as a reference, not a diagnosis.

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How to use

1.

Enter your height (cm) and weight (kg).

2.

Your BMI value and category, from underweight to severely obese, are shown automatically.

3.

Check the normal weight range for your height too.

FAQ

Tool info

Category Calculators
Processing Directly in your browser
Data storage Not stored
Created 2026-08-21
Updated 2026-09-19