Concrete Volume & Bag Estimator
Cubic metres (or yards) of ready-mix concrete for a slab or foundation, including a waste factor.
Result
- Neat volume
- 3.6 m³
- Order with waste
- 3.96 m³ (5.18 yd³)
- Estimated cost
- €515
- Small-load surcharge?
- No
About this calculator
Volume = length × width × depth. Standard order waste factor: 5 % for a screeded slab, 10 % for uneven sub-base or strip foundations. Ready-mix is priced by m³ delivered; short loads (<3 m³) attract a small-load surcharge.
Frequently asked questions
- What does the Concrete Volume & Bag Estimator do?
- Cubic metres (or yards) of ready-mix concrete for a slab or foundation, including a waste factor. Volume = length × width × depth. Standard order waste factor: 5 % for a screeded slab, 10 % for uneven sub-base or strip foundations. Ready-mix is priced by m³ delivered; short loads (<3 m³) attract a small-load surcharge.
- Is the Concrete Volume & Bag Estimator free to use?
- Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.
- How accurate is the Concrete Volume & Bag Estimator?
- Results are calculated in real time using industry-standard formulas. Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified construction & building professional before committing to a purchase or a job.
- What inputs does the Concrete Volume & Bag Estimator need?
- Enter values for: Length, Width, Depth (mm), Length/width unit, Waste %, Price per m³ (€). Sensible defaults are pre-filled where possible so you can start with a single change.
- Can I embed the Concrete Volume & Bag Estimator on my own website?
- Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.
Mini Course
40 min
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The pricing framework used by profitable contractors — from take-off to contingency — explained in plain language.
What you'll learn
- Break a job into material, labour and overhead lines
- Set a defensible contingency and margin
- Handle change orders without eating the cost
- Read a quote back to a client with confidence
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