BMI Calculator Online - Free BMI calculator for Body Mass Index results.
Free online BMI calculator. Enter your height and weight to calculate your Body Mass Index. See your BMI category and healthy weight range instantly.
Unit:
cm
kg
BMI Categories
Underweight< 18.5
Normal18.5 – 24.9
Overweight25 – 29.9
Obese≥ 30
How to Use BMI Calculator
- 1Select Metric (cm/kg) or Imperial (ft+in/lbs) mode.
- 2Enter your height and weight in the selected units.
- 3View your BMI number, category, and healthy weight range.
- 4Copy your BMI result to clipboard.
Frequently Asked Questions
What is a healthy BMI range?
A healthy BMI is between 18.5 and 24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.
Does this support both metric and imperial?
Yes. You can toggle between metric (cm/kg) and imperial (ft+in/lbs) modes. The tool automatically converts values when you switch.
What is the healthy weight range?
Based on your height, the tool calculates the weight range that corresponds to a BMI between 18.5 and 24.9, giving you a target healthy weight window.
Found a bug or have a suggestion? Report it on GitHub
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