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BMI Calculator

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Free Calculators

How to use the BMI Calculator

Calculate body mass index from height and weight using the standard formula. BMI is a screening measure, not a complete view of health.

  1. Enter or choose the information requested by the tool.
  2. Check the result and change an input if you want to compare another scenario.
  3. Copy, download or use the result when it fits your task.

Using the result

Use the result as general information only. A healthcare professional can help interpret health concerns in context.

Your tool entries are handled in your browser and are not sent to or saved by KitLumo.

Read what a BMI estimate means

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Practical guides

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Short, plain-language guides explain the assumptions, privacy and limits behind the most important KitLumo tools.

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KitLumo is built around small, focused utilities. No login walls, no artificial limits and no AI layer where a reliable tool will do.

Every tool currently available works directly on the phone, tablet or computer you are using. Anything you type, paste, calculate or open in a tool is not sent to us, and KitLumo does not save a copy.

Your saved and recently used tool shortcuts are stored only in your browser on this device. When you use “Report a problem” or “Request a free tool,” only that message and any email address you choose to add are sent to KitLumo.

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