Concrete Calculator
Estimate concrete volume and rough material cost for slabs, footings, and post holes.
Cluster hub
Concrete Estimating
Estimate concrete volume and rough material cost for slabs, footings, and post holes.
Concrete and aggregates1 calculatorsRelated guides included
Core calculators in this cluster
Use this hub to move between closely related calculators in the same topic family. The goal is to keep the estimating journey connected instead of forcing one page to do every job.
How to use this cluster
Start with the calculator that matches the material or buying format you actually need, then move into the related guides if you need more detail before buying.
What affects estimates most
Dimensions, depth or coverage assumptions, waste allowance, and pack or stock-length rounding are usually the biggest drivers of the final buying number.
Why these guides are useful
The extra guides in each cluster help explain common mistakes, waste allowances, and buying choices that a simple quantity figure cannot cover on its own.
Concrete for Slab Calculator
Estimate slab concrete volume with length, width, depth, and waste guidance.
Concrete for Post Holes Calculator
Work out concrete needs for fence posts and similar jobs.
Concrete Volume Guide
Understand cubic metres, cubic feet, and practical buying margins for concrete orders.
Ready-Mix vs Bagged Concrete
Compare ready-mix and bagged concrete for small and medium jobs.