BMI calculator
Body mass index from height and weight.
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Katch–McArdle BMR
BMR from lean mass. This health tool runs in your browser when possible, with labelled inputs and a result you can copy.
Result
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Educational estimate only — not medical advice.
What this tool does
Katch–McArdle BMR turns your input into a result you can check: BMR from lean mass.
How to use it
- Stay on this page — you do not need to install an app.
- Enter the labelled numbers, then use Calculate. Reset clears the fields to the example values.
- Use Copy or Download when you need the output elsewhere. Reset restores the example inputs.
Example
Example: start with Lean mass (kg) set to 55, then adjust to your own figures.
Why people use it
No install. Units sit next to the fields. Errors are written in plain language. Related tools in the same hub sit at the bottom of the page.
FAQ
Is Katch–McArdle BMR free?
Yes. You can use Katch–McArdle BMR without an account.
Is this official advice?
No. Health, tax, legal, and platform limits are estimates. Confirm high-stakes numbers with an official source.
Do you store my files or prompts?
Calculator values and files stay in the browser. AI prompts are sent to the model provider to produce a draft and are not saved as WordPress posts.
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