BMI Calculator (Metric)
Estimate body mass index from kilograms and centimetres.
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Estimate body mass index from kilograms and centimetres.
BMI is a general screening measure and is not a medical diagnosis.
How to use this calculator
Enter your values above and the result updates instantly. You can change the inputs as often as you like, and use Reset to restore the example values.
About the result
Estimate body mass index from kilograms and centimetres. The calculation runs in your browser; the values you enter are not sent to this website.
What the BMI Calculator (Metric) does
Estimate body mass index from kilograms and centimetres. It is designed for understanding a general health or activity estimate from the measurements you provide. The calculator uses the values you enter to produce bmi and category without sending your information to the server.
This page is most useful when you want a quick answer and a repeatable way to compare alternatives. Change one input at a time to see which factor has the greatest effect.
How the calculation works
The calculation starts with weight and height. It applies the relevant health relationship to calculate bmi and category. Results update in your browser whenever an input changes.
Inputs used
- Weight
- Height
Results provided
- BMI
- Category
Practical tip: Use recent, accurately measured inputs and treat the output as one indicator rather than a diagnosis.
Example bmi calculator (metric) setup
The calculator opens with the example values below. They demonstrate the expected format and give you a starting point before entering your own figures.
- Weight
- 75 kg
- Height
- 175 cm
After entering the values, review bmi and category in the results panel. Use Reset whenever you want to return to this example.
Understanding your result
Read the result alongside the inputs that produced it. A precise-looking number is still only as useful as the information entered. For comparisons, keep every input the same except the one factor you want to test.
This tool is for general information only and is not a substitute for medical advice, diagnosis or treatment. The tool rounds displayed answers where appropriate, while the underlying browser calculation retains greater precision.
Frequently asked questions
What information do I need for the BMI Calculator (Metric)?
You need weight and height. Use values that describe the same scenario and measurement period so the comparison remains meaningful.
What does the BMI Calculator (Metric) show?
The results cover bmi and category. Change any input to compare another scenario; the answer updates immediately.
Can I rely on this health calculation?
This tool is for general information only and is not a substitute for medical advice, diagnosis or treatment.