Concrete Steps Calculator
Calculate cubic yards or cubic meters of concrete needed for steps and stairs.
Enter number of steps, width, rise, and run for an accurate estimate.
Concrete Needed
Concrete for Steps is calculated by finding the volume of each step and summing them. Each step is a rectangular prism that includes all the steps below it (stacked formation).
Volume per step = Width × Run × (Rise × Step Number)
Total Volume = Sum of all steps
Unit conversions:
Imperial: Cubic Yards = Total Volume (cu ft) / 27Metric: Cubic Meters = Total Volume (m³)
Standard step dimensions (imperial):
- Rise (height): 7–8 inches per step
- Run (depth): 10–12 inches per step
- Width: 36–48 inches typical
Standard step dimensions (metric):
- Rise (height): 17–20 cm per step
- Run (depth): 25–30 cm per step
- Width: 90–120 cm typical
Tips:
- Always add 10–15% extra for waste and form overflow
- Include a 4–6 inch (10–15 cm) base slab under the bottom step for stability
- Building codes typically require a maximum rise of 7.75 inches (19.7 cm)