Calculate your Body Mass Index from height and weight.
Adjust settings to match exactly what you need
Files are never uploaded to a server — processed in your browser
No limits, no payment, ever
Fill in the required numbers in the calculator.
The result updates as soon as you click Calculate.
This calculator is free and has no usage limit.
BMI Calculator gives you a quick estimate of Body Mass Index, a common screening measure for weight category.
Yes, completely free with no sign-up required and no limit on how many times you can use it.
No. All calculations happen instantly in your browser — nothing is sent to any server.
BMI is a general screening tool and does not account for muscle mass, body composition, or individual health factors. Consult a doctor for a full health assessment.