Stair Calculator

The number of steps and the real step height from a total rise.

Result

Number of steps

16

Actual step height

17.50

How it works

Steps = round(total rise ÷ target height)

Stairs need equal steps. Pick a comfortable target height (about 17 cm); the calculator rounds to whole steps and gives the exact height each one must be.

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Frequently asked questions

What is a comfortable step height?

Around 16–19 cm per step is comfortable for most homes.

Why are all steps equal?

Uneven steps are a trip hazard, so the total rise is divided equally across every step.

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