BMI Calculator
Estimate adult BMI using metric or imperial measurements.
Health calculator results are general estimates for adults and are not medical advice, diagnosis or treatment recommendations.
Instructions: BMI Calculator
Follow these steps to get a reliable result without unnecessary setup.
- 1
Choose Metric or Imperial units.
- 2
Choose the options in BMI Calculator that match your intended output, such as units, format, mode, range or quality when those controls are available.
- 3
Run BMI Calculator and review the displayed result, preview or validation message before proceeding.
- 4
Individual health circumstances differ; use the estimate as general information and consult a qualified professional for personal medical decisions.
- 5
Use the available reset, copy or download action in BMI Calculator when you are satisfied with the result; only actions supported by this tool are shown.
About this tool: BMI Calculator
Calculate body mass index and show standard adult reference categories for general information only; this is not medical advice or diagnosis.
The result is a general informational estimate for adults and should not be treated as medical advice, diagnosis or treatment guidance.
BMI Calculator is presented in the shared NexterHub tool layout so the working controls stay near the top while the method, example, limitations and related utilities remain available below the result.
How it works
BMI equals weight in kilograms divided by height in metres squared; imperial inputs are converted before calculation.
Practical example
70 kg at 175 cm gives a BMI of about 22.9.
Important notes
Individual health circumstances differ; use the estimate as general information and consult a qualified professional for personal medical decisions.
Privacy & processing
The estimate is calculated in the browser from the measurements you enter. Avoid including personally identifying details that are not required.
Frequently asked questions
What does BMI Calculator do?
Estimate adult BMI using metric or imperial measurements.
How do I use BMI Calculator?
Start with the main input step: Choose Metric or Imperial units. Then choose any relevant options, run the tool and review the result.
How does BMI Calculator calculate or process the result?
BMI equals weight in kilograms divided by height in metres squared; imperial inputs are converted before calculation.
What should I check before using a result from BMI Calculator?
Individual health circumstances differ; use the estimate as general information and consult a qualified professional for personal medical decisions.
Does BMI Calculator send my input to a NexterHub server?
The estimate is calculated in the browser from the measurements you enter. Avoid including personally identifying details that are not required.
Can I use BMI Calculator on a phone or tablet?
Yes. BMI Calculator uses the responsive NexterHub tool layout, so controls and results adapt to smaller touch screens.