BMI Calculator
Calculator ToolsBody mass index with healthy weight range
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History
All history →BMI Calculator — at a glance
Check your BMI and the weight range considered healthy for your height.
How to use it — step by step
Your height and weight in metric (cm, kg) or imperial (inches, pounds).
Enter your numbers
Fill in the fields — sensible example values are already filled in.
Pick your options
Choose any dropdowns or switches that apply to your case.
Calculate BMI
Press the button. The result is created instantly on your device.
Read the answer
The main answer is shown big at the top, with details below it.
Pro tips
Small things that make the result better.
Quick facts
Frequently Asked Questions
How is BMI calculated?+
Weight in kilograms divided by height in metres squared.
Is BMI accurate for athletes?+
Not always. Muscle is heavy, so very muscular people can show a high BMI while being healthy.
Is this medical advice?+
No. It is for general information only. Consult a healthcare professional about your health.
Is this tool really free?+
Yes — completely free, no signup, no watermark and no usage limit.