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CM into Inches
Construction · Calculator

Stair Calculator

Calculate number of stair risers.

Stair Calculator

Estimate risers from total height.

Formula

Risers = ceil(Height / Riser)

Step-by-step

  1. Divide total height by riser height
  2. Round up

Example

108in / 7in = 16 risers.

FAQ

What is ideal riser height?+

7-7.5 inches is comfortable.

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