Home Services Free Tools Guides & Articles For Tradies About Contact
Free Tool

Concrete Calculator

Calculate concrete volume for slabs, footings, and posts

📐 Shape Type

🧱 Slab Dimensions

Typical: 100mm for paths, 150mm for driveways, 200mm+ for structural

➕ Waste Allowance

Recommended: 10% for standard jobs, 15% for complex shapes

Concrete Required

0.00 m³

Pre-mix bags (20kg): 0 bags

Ready-mix minimum order is typically 0.8m³

Common Concrete Grades

  • N20: Paths, light traffic areas
  • N25: Driveways, residential slabs
  • N32: Suspended slabs, structural elements
  • N40: Heavy duty commercial, high-rise

Disclaimer

This calculator provides estimates only. Actual requirements may vary. Always consult with a qualified concretor or engineer for structural work. Tradies Nation accepts no liability for estimates generated using this tool.