Calculators
Percentage Calculator
Work out a percentage without the mental maths: a share of a number, a percentage comparison or a change.
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Free online tool · No signup
BMI Calculator
Calculate adult BMI from height and weight, with metric or imperial inputs and a reference weight range.
- Metric or imperial input
- BMI reference categories
- Weight range for your height
Works in your browser · Your files stay hereFree · No account · No daily task limit
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How to use BMI Calculator
- Choose metric or imperial units.
- Enter the height and weight.
- Read the BMI and adult reference category; it is not a diagnosis.
BMI Calculator: your questions answered
Is BMI a medical diagnosis?
No. BMI is a rough population-level screening number — it doesn’t account for muscle, age or body composition. This tool is informational only; talk to a health professional about your individual situation.
Privacy
This tool runs entirely in your browser. Your file is processed on your device and is not uploaded to a server. You do not have to take that on trust — the monitor directly beneath the tool reads your browser’s own record of every request this tab made while your file was open.
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Calculators
Fuel Cost Calculator
Plan a road trip’s fuel budget from the distance, your fuel consumption and the price at the pump.
On your device