Stair Calculator
A free, browser-based calculator. Runs entirely in your browser — no sign up, nothing stored.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter the total rise.
- Optionally set a target riser, then Calculate.
How it works
Steps = total rise ÷ target riser (rounded); the actual riser is the total rise ÷ that number of steps.
Worked example
2,700 mm rise, 180 mm target. = 15 steps of 180 mm.
Related tools
Tip: Enter any known values to calculate the remaining results.
All calculations run in your browser. Your inputs are never saved or transmitted.