Quick guide
Try an example
You enter
- Slab length (m)
3
- Slab width (m)
2
- Slab thickness (m)
0.1
- Mixed yield per bag (L)
15
You get
- Concrete volume (m³)
0.6
- Whole bags
40
How it works and limits
Enter the slab dimensions in metres and the mixed yield per bag in litres. The bag count is rounded up without a waste allowance.