Enter your height and weight to calculate BMI and see the broad category used for general screening purposes.
Inputs
This topic also has a deeper guide and a printable reference pack, so you can move from the live answer into the method, assumptions, and worked examples without leaving the topic cluster.
These are the main values the calculator uses. Keep the units consistent and, where relevant, match the assumptions explained in the related guide.
Choose the measurement system you want to use for height and weight entry.
Unit: kg
Enter body weight in kilograms.
Unit: cm
Enter height in centimetres.
Unit: lb
Enter body weight in pounds.
Unit: ft
Enter the whole-feet portion of height for imperial input.
Unit: in
Add the remaining inches on top of the feet value.
Use this page for a quick BMI estimate from height and weight when you want a broad screening measure rather than a detailed body-composition assessment.
The main result is the BMI figure. Supporting values show the category label and the normalised height and weight used in the calculation.
If someone weighs 72 kg and is 180 cm tall, the BMI works out at about 22.2, which falls inside the common healthy-range category.
BMI is a rough screening tool and not a diagnosis. It does not directly measure body fat, fitness, or individual health status.
No. BMI uses only height and weight, so it can be helpful as a broad screening indicator but not as a direct body-fat measurement.
The category helps place the BMI figure in the broad screening bands commonly used in public-health guidance. It is still only a starting point.
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