Stair Calculator

Calculate stair dimensions including rise, run, angle, and stringer length.

Stair Dimensions

Total Rise (inches)

Total Run (inches)

Target Rise per Step (inches)

Stair Summary

14 Steps

✗ Outside typical building code range

Rise per Step

7.14"

Run per Step

8.57"

Step Angle

39.8°

Stringer Length

156.2"