Embed
Embed the Stair Calculator
Three quick steps — customize the look, choose how it behaves, then copy the code onto your site.
Already have an account? Sign in
Live preview
in
12 in300 in
in
4 in9 in
in
6 in16 in
Number of Steps
15
Number of equal risers needed to cover the total rise.
Actual Step Rise
7.200
Exact rise per step once the total rise is divided evenly.
Stringer Length
176.82
Length of the diagonal stringer board, from the Pythagorean theorem.
Comfort Check (2R + T Rule)
Comfortable
Checks 2 times the actual rise plus the run against the widely used 24 to 25 inch stair comfort guideline.
Share result
Reload calculator
Clear inputs
Found this calculator useful?