Free civil tool · Metric · No signup
Concrete Calculator
Slabs, footings, piers and kerbs — pick the shape, get m³ and an order volume with waste. Built for headwalls, surrounds, footings and structures, not just driveways.
Example inputs are editable. Use your project values. Enter 0 where no optional allowance is intended; blank fields pause the calculation.
Your inputs
Your results
- Net volume
- 5 m³
- Order volume (incl. waste)
- 5.25 m³
These free results do not automatically save or sync to a Fieldlink job.
How it works
- Slab = L × W × thickness
- Footing = L × W × depth
- Pier = π × (Ø/2)² × depth × count
- Kerb = L × cross-section area
- Order = volume × (1 + waste %)
Worked example
10 m × 4 m slab @ 125 mm Volume = 5 m³ → order 5.25 m³ with 5 % waste
Working on the full job?
Build the concrete quantity into the wider civil estimate.