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BMI Calculator for Children

Calculate the BMI number for ages 2–18; interpretation requires an official age- and sex-specific chart. Running the tool requires an account; the free account includes 10 one-time operations on eligible tools.

Child Age (years)

Child Weight (kg)

Child Height (cm)

Gender

CDC: Child and Teen BMI Calculator and Charts.

🔒 Processed locally in your browser — no file is sent to our servers

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About BMI Calculator for Children

Calculate the BMI number for ages 2–18; interpretation requires an official age- and sex-specific chart

Source and result scope

BMI number only; a percentile requires the exact growth-chart data. Publisher: Zayenha Tools. We checked the published source on 28 September 2026; no individual professional review of this result is claimed. CDC.

Frequently Asked Questions

How do I start using this tool?

You can preview the tool without an account. Running it requires an account; the free account includes 10 one-time operations, with plans for ongoing use.

How does this tool handle my data?

Processing varies by tool: file editing tools process selected files in the browser, while others may call a server or external provider. Check the tool description and privacy policy before entering sensitive data.

Does this tool work on mobile devices?

The site adapts to mobile and desktop screens, but some functions depend on browser and device support.