Is this Stair Calculator free to use?

Yes, Stair Calculator is 100% free to use online with no installation or account required.

How do I use the Stair Calculator?

Simply enter your values into the required input fields and click calculate to view the results instantly.

Yes, the calculator is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Stair Calculator — Free Online Tool

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Calculate stair dimensions per building code

Note: IRC: max rise 7.75 in, min run 10 in. 2R + T = 24-25 in.

Stairs

Total Rise (in)

Max Rise per Step (in)

⚠️ For educational purposes only. Verify results with a qualified professional when making important decisions.