Stair Rise Calculator โ Calculate Risers and Total Run
Enter the total rise, maximum riser height and tread depth to calculate the number of risers, even riser height and total horizontal run.
Number of risers
Even riser height
Number of treads
Total horizontal run
This assumes a straight stair whose upper floor serves as the final tread, so there is one fewer tread than risers. Stair, landing and handrail rules vary by location and use; verify local building requirements and the actual opening before construction.