BMI Calculator: inputs and options
Because the BMI Calculator has no file upload, the "formats" here refer to the values and units you can enter. Getting these right ensures an accurate result.
Input fields
The calculator takes two numeric inputs:
| Input | Metric unit | Imperial unit |
|---|---|---|
| Height | meters (m) | feet and inches (ft/in) |
| Weight | kilograms (kg) | pounds (lbs) |
Unit options
- Metric — enter height in meters and weight in kilograms
- Imperial — enter height in feet and inches and weight in pounds; the tool converts to metric internally
Number formats
- Whole numbers and decimals are both accepted (e.g., 68, 68.5, 1.75)
- Use a period (.) as the decimal separator
- Entering unusual values (very low or very high) still produces a result, but check the category and range for context
Reading the results
Your result shows three things: the BMI value, the weight category, and the healthy weight range for your height. The category follows the WHO classification of underweight, normal, overweight, and obese.
Verdict
BMI Calculator keeps the inputs simple — two numbers and a unit choice — and returns everything you need to understand your weight status.