# Concrete Steps - Solid - Metric

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 millimetres for measurements.

#### Calculation

- enter the number of steps
- the riser height of the step in millimetres
- the run of the step in millimetres
- the width of the stairs in millimetres

#### Results

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

##### Conversions

one cubic millimetre (mm³) = 0.000000001 cubic metres (m³)
one cubic millimetre (mm³) = 0.0000000353146667214886 cubic feet (ft³)
one cubic millimetre (mm³) = 0.00000000130795061931439 cubic yards (yd³)

To convert cubic metres to cubic feet, multiply cubic metres by 35.3146667214886
To convert cubic metres to cubic yards, multiply cubic metres by 1.30795061931439

### When Ordering Concrete

This concrete calculator will help you in estimating the amount of concrete needed for your project. The amount given as needed, does not include any waste. It is recommended, depending on the job you are doing, to add anywhere from an extra 4% to 10% to your concrete order to make sure you have enough concrete to finish the job. Ask when ordering the concrete. They will be able to give you a good idea of what is needed.