Stair Calculator
Steps and total run.
Enter the values and press Calculate.
How to use Stair Calculator
Divide the total rise by the step height to get the step count, then multiply by the run.
Open Stair Calculator on toolpermarket and enter your values above.
Enter the total rise, the step height, and the step run in the fields above, then press Calculate.
Read the result below the form. You can change any input and press Calculate again to compare scenarios.
Worked example. A 2.8 meter rise at 0.18 meter steps gives 16 steps and a 4.48 meter run.
When to use Stair Calculator. Use it when planning or checking a staircase build.
When you actually reach for this
- Use it when planning or checking a staircase build.
Where this tool stops being accurate
- Treats areas as perfect rectangles and excludes doors, windows, and waste.
- In practice buy 5-10 percent extra to cover cuts, mistakes, and pattern matching.
Frequently asked questions
What is a good step height?
Around 0.17 to 0.18 meters is common for comfortable indoor stairs.
Can the count be fractional?
No. Steps are rounded to a whole number.
Should I order exactly this amount?
No. The tool gives the raw area or count; add 5-10 percent for offcuts and breakage, and subtract fixed openings like doors where relevant.