Concrete for a 20×1.5 m Footpath
Calculate the concrete volume for a 20-metre-long by 1.5-metre-wide concrete footpath at 10 cm depth.
How to use this tool
- Enter slab length, slab width and slab thickness in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your concrete volume and the full breakdown beneath it.
Find out how many cubic metres of concrete are needed to construct a 20×1.5 metre public footpath or driveway approach.
Frequently asked questions
- How many bags of concrete do I need for a slab?
- Calculate volume in m³ = length × width × thickness (m). A 20 kg bag covers about 0.01 m³, so divide your volume by 0.01 and round up.