Stair Calculator — Riser, Tread & Steps Calculator
Calculate stair dimensions — number of steps, riser height, tread depth, and total run. Ensures compliance with standard stair ratios (riser + tread = 450mm) for comfortable stairs.
Loading Stair Calculator…
Preparing your calculator
How to Use Stair Calculator
- 1Enter the required values in the input fields above.
- 2Click the Calculate button or results update instantly as you type.
- 3View your results in the output panel below the inputs.
- 4Adjust any values to recalculate instantly.