Staircase Calculator
Calculate staircase dimensions including number of steps, riser height, tread depth, total run, and stair angle. Uses building code recommendations for comfortable stairs.
How to Use Staircase Calculator
The Staircase Calculator determines the optimal dimensions for building stairs. Enter the total rise (floor-to-floor height) and optionally a preferred riser height. The tool calculates the number of steps, actual riser height, tread depth (using the comfort rule: riser + tread ≈ 17.5 inches), total horizontal run, and stair angle. It also indicates whether the resulting angle falls within the comfortable range of 30-37 degrees. Supports both inches and centimeters for international use.
Step-by-Step Instructions
- Select your measurement unit (inches or centimeters)
- Enter the total rise (floor-to-floor height)
- Optionally enter a preferred riser height
- Click Calculate to see steps, dimensions, and comfort rating
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