Stair Calculator
Calculate stair dimensions, rise, run, angle, and total materials needed with visual diagrams.
mm
Vertical distance from floor to floor.
mm
Standard is usually 170-190mm.
mm
Horizontal depth of each step. Standard ~250mm.
Steps
Total Steps (Risers)
mm
Exact Riser Height
| Total Run (Length) | mm |
|---|---|
| Total Rise | mm |
| Incline Angle | ° |
| Stringer Length | mm |
Warning: This stair angle (°) is quite steep. Comfortable stairs are usually between 30° and
37°.
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Schematic Side View
Features
- Precise Step Calculation: Automatically finds the optimal number of steps based on total height.
- Safety Checks: Calculates the angle and warns if steep.
- Comprehensive measurements: Provides total run, stringer length, and exact riser heights.
How to Use
- Measure vertical height (Total Rise) from the lower floor to the upper floor surface.
- Enter your desired Riser Height (usu. 175mm).
- Enter the Tread Depth (usu. 250mm).
- Get the exact layout plan immediately.