Spike's Calculators

Calculate the amount of concrete you need to pour solid concrete steps with no inside forming to reduce the amount of concrete. This calculator uses inches for measurements.

- enter the number of steps
- the riser height of the step in inches
- the run of the step in inches
- the width of the stairs in feet and or inches

- the total rise of the stairs in inches
- total run of the stairs in inches
- the slope of the stairs in degrees
- the amount of concrete needed in cubic feet
- the amount of concrete needed in cubic yards
- the amount of concrete needed in cubic metres

one cubic inch (in³) = 0.000578703703703704 cubic feet (ft³) one cubic inch (in³) = 0.0000214334705075445 cubic yards (yd³) one cubic inch (in³) = 0.000016387064 cubic metres (m³)

To convert cubic feet to cubic yards multiply cubic feet * 0.037037037037037 To convert cubic feet to cubic metres multiply cubic feet * 0.028316846592 To convert cubic yards to cubic metres multiply cubic yards * 0.764554857984