BMI Calculator
Enter height in centimeters and weight in kilograms. The calculation runs in your browser and updates BMI, category and healthy weight range from the selected standard.
Measurement Utility
BMI Calculator
Enter your height and weight to calculate BMI, check your weight category, and estimate a healthy weight range. You can switch between Asian and WHO standards, making it easier to compare everyday wellness references without changing tools.
BMI Result
0.0
-
Enter your height and weight to calculate your BMI.
Weight Status
-
Healthy Weight
-
Input
-
18.5
22.9
24.9
30+
Results are shown using the Asian BMI standard.
BMI Classification
BMI category boundaries differ between Asian and WHO standards, so the selected standard affects the normal, overweight and obese ranges shown below.
Underweight
Below 18.5
Normal
18.5 ~ 22.9
Overweight
23.0 ~ 24.9
Obese
25.0 or higher
Help
What is a BMI Calculator?
A BMI Calculator estimates Body Mass Index from height and weight, then places the result into a basic weight-status category.
BMI is a screening reference, not a diagnosis. It does not directly measure body fat, muscle mass, age, sex, pregnancy, medical history or overall health condition.
How to Use
- Choose whether to use the Asian standard or the WHO standard.
- Enter height in centimeters and weight in kilograms. Decimal values are supported.
- When auto calculation is enabled, BMI, category and healthy weight range update as you type.
- Use Copy Result if you want to save the BMI value, category and healthy weight range in a note or message.
Which BMI standard should I use?
The Asian standard is often used in Korea, Japan, China and nearby regions, while the WHO standard is common in international or English-language references. Choose the one that matches the reference you want to compare with.
Can BMI determine my health condition by itself?
No. BMI uses only height and weight, so it can be misleading for muscular people, older adults, children, pregnant people or anyone with specific medical conditions. Use it as a general reference only.
How is the healthy weight range calculated?
The healthy weight range is calculated by applying the selected standard's normal BMI range to your entered height. Because Asian and WHO ranges use different upper boundaries, the estimated range can change when you switch standards.