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Ready-Mix Concrete Cost Calculator

Estimate a ready-mix concrete material cost from volume, waste allowance and your quoted price per cubic metre. No account, email or download required.

Construction illustration for Ready-Mix Concrete Cost Calculator

Enter your measurements

m³
Calculated concrete volume.
%
Optional ordering allowance.
£/m³
Enter your supplier quote; prices vary by area and load.

How this ready-mix concrete cost calculator works

Order volume = measured volume × (1 + allowance). Estimated material cost = order volume × your supplier price per m³.

Formula: Order volume = measured volume × (1 + allowance). Estimated material cost = order volume × your supplier price per m³.

Worked example

If a pour measures 2 m³ and you add 5%, the estimating quantity becomes 2.10 m³ before applying your supplier’s rate.

Before you order materials

Measure the real job, not an old sketch or an assumed room size. Where this calculator lets you change coverage, density, spacing or waste, use the figure that applies to your chosen product and installation. Round purchasing quantities to the pack, bag or stock length actually sold by your supplier.

Planning estimate only. This calculator does not verify structural design, Building Regulations compliance, product suitability or safe installation. Check drawings, specifications, manufacturer instructions and supplier quantities before purchasing.

Make the estimate more reliable

Measure net quantities

Separate gross dimensions, openings and repeated sections before applying material rates.

Use the actual product data

Brick rates, bag yields and mix coverage vary. Replace defaults with the data for the chosen material.

Round only at the buying stage

Keep the mathematical quantity visible, then convert it to whole packs, bags or delivery units.

Common estimating mistakes

  • Mixing millimetres and metres in the same formula
  • Applying waste before deducting openings
  • Rounding intermediate values too early

Useful workflow: measure → calculate the base quantity → check the variable assumptions → add the chosen allowance → round to the supplier’s real sales unit.

Frequently asked questions

Does this include delivery or part-load charges?

Only if you build those charges into the price you enter. Supplier minimum-load, waiting and delivery charges vary, so check the quote.

Are the prices live?

No. The calculator deliberately asks for your current quoted rate rather than pretending one national price applies everywhere.