What This Calculator Is Best For
Use it for slab and rectangular pour estimates, with a waste allowance shown for ordering.
- Estimate a small slab.
- Convert cubic meters to cubic yards.
- Add an ordering buffer.
Estimate concrete volume for slabs, footings, and pours.
Volume = length × width × depthEnter the known values and the calculator applies this formula to produce the main result, plus supporting values that help you check the answer.
| Symbol | Variable | Description |
|---|---|---|
| length | Length | Length, entered in m. |
| width | Width | Width, entered in m. |
| depth | Depth | Depth, entered in m. |
Enter the known values
Fill in the fields and confirm that the units match the formula shown on the page.
Click Calculate
The primary answer appears in the highlighted row, with related check values underneath.
Read the result
The main result is concrete volume. The 10% waste value helps cover uneven subgrade, spillage, and measurement error.
Use it for slab and rectangular pour estimates, with a waste allowance shown for ordering.
The main result is concrete volume. The 10% waste value helps cover uneven subgrade, spillage, and measurement error.
Measure depth in meters if length and width are in meters. Mixed units will give a wrong volume.
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