BMI Calculator
Calculate your Body Mass Index from height and weight instantly. Free BMI calculator, metric units.
The BMI Calculator below works out your result the moment you type — no sign-up, no cost. A quick, private way to check the numbers that matter to your health. Enter weight (kg) and height (cm) and the total updates live.
How the bmi calculator works
Just fill in the fields above — weight (kg) and height (cm) — and the bmi calculator does the maths instantly. Nothing is sent anywhere; the calculation happens right in your browser.
Want this bmi calculator on your own site?
Add it free with RGT Quote Builder — a drag-and-drop WordPress calculator plugin with 100+ ready-made templates and no paywall.
FAQ
Is the bmi calculator free?
Yes — completely free to use, with no account and no limits.
Can I add this bmi calculator to my WordPress site?
Yes. Install the free RGT Quote Builder plugin, pick the BMI Calculator template, and drop it onto any page with a shortcode or block.
Can I customise the fields and pricing?
Absolutely — every field, price and formula is editable in the drag-and-drop builder.