How to Calculate Concrete Volume
Concrete volume is calculated by multiplying length, width, and depth. This calculator handles both metric and imperial units, converting feet to meters automatically.
Recommended Waste Percentage
- 5% – Simple slab pours
- 10% – Footings, trenches, or uneven ground
- 15%+ – Complex forms or large projects
Common Uses for This Calculator
- Concrete slabs
- Footings and foundations
- Fence posts
- Driveways and patios
- Stairs and ramps
Tips for Accurate Concrete Estimation
- Measure depth at multiple points if the ground is uneven
- Always round up — running short delays the project
- Order slightly more concrete than calculated
- Check local supplier minimum delivery amounts
Additional FAQ
How many cubic meters are in a concrete truck?
Most trucks carry 6–10 m³ depending on the supplier.
Can I mix concrete by hand?
Yes — but only for small volumes under 0.5 m³.
Does rebar affect concrete volume?
No — rebar does not significantly change volume.
Can I use this calculator for round holes?
Yes — calculate the cylinder volume separately and add it.