Stair Calculator
The Stair Calculator is an online tool for calculating various parameters involved in the construction of stairs.
Refer to the figure adjacent to the calculator as a reference. A fraction-to-decimal conversion table for common
fractions used in measurements is also provided at the bottom of the page.
Result:
Stair Calculator (Basic Version)
The Stair Calculator (Basic Version) is a simple yet powerful tool designed to help homeowners, builders, and DIY enthusiasts quickly calculate essential stair dimensions for construction projects.
Key Features:
✔ Input Flexibility – Enter measurements in meters, feet, inches, or centimeters for convenience.
✔ Two Calculation Modes –
- Use One Run: Define the length of a single stair tread (run).
- Use Total Run: Input the entire horizontal distance the stairs will cover.
✔ Automatic Results – Instantly computes: - Number of Risers & Treads
- Individual Step Rise & Run
- Total Run Length
- Stringer Dimensions (Length & Height)
- Stair Angle (Slope)
Why Use It?
- Ensures safety & compliance with standard stair-building guidelines.
- Saves time by eliminating manual calculations.
- Works for indoor & outdoor stairs (deck stairs, basement steps, etc.).
Simply enter your Total Rise (vertical height) and preferred Run measurement, then click Calculate to get precise stair dimensions.