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BMI Formula With Examples: Calculate Your BMI Step by Step

Learn the BMI formula with simple examples. See how height and weight are used to calculate body mass index with metric and imperial units.

BMI Formula With Examples: Calculate Your BMI Step by Step

The BMI formula is a mathematical equation used to calculate body mass index from a person's height and weight.

BMI is commonly used as a screening measurement because it provides a simple standardized number. However, BMI does not directly measure body fat and should not be treated as a complete assessment of health.

The Metric BMI Formula

When using kilograms and meters, the formula is:

BMI = weight in kilograms ÷ height in meters²

For example, if someone weighs 70 kilograms and is 1.75 meters tall:

70 ÷ (1.75 × 1.75) = approximately 22.9

The resulting BMI is approximately 22.9.

Why Height Is Squared

The height value is squared as part of the standard equation.

This means you should multiply the height in meters by itself before dividing the weight by the result.

For example:

Related BMI information

You can also use Open the BMI calculator and Read more helpful articles as part of your workflow.

Practical tips for better results

Before using BMI Formula With Examples: Calculate Your BMI Step by Step, check the original file or information carefully and decide what result you need. A clear starting point makes the process easier to manage and helps you avoid unnecessary changes. If you are working with an online utility, review the available options before processing your file so you can choose settings that match the task.

For regular workflows, keep your files organized and compare the result with the original after processing. This is particularly useful when quality, formatting, compatibility, or file size matters. If the first result is not ideal, adjust the available settings and try again rather than changing several things at once. The goal of a bmi formula workflow is to save time while keeping the final result accurate and usable.