Planning a concrete project and not sure how much you need to order? Whether you're laying a patio, pouring a driveway, setting fence posts or building foundations, getting the right volume of concrete is essential. Order too little and you'll face delays. Order too much and you're paying for what you don't need.
That's why we've created our free Concrete Volume Calculator — a simple tool that does the maths for you in seconds.
How the Calculator Works
Our calculator is designed to be quick and easy to use, even if you're not confident with measurements. Just follow these steps:
- Select your shape — choose from a rectangle, triangle or circle depending on the area you're working with.
- Enter your dimensions — input the length, width (or diameter) and depth of the area to be concreted. You can enter measurements in metres, centimetres, millimetres or inches — whichever you're most comfortable with.
- See your result — the calculator instantly shows the estimated volume in cubic metres (m³), which is how concrete is ordered in the UK.
There's also an optional Reserve % field. Because there's rarely a perfect pour, you may want to add a small percentage — typically 5–10% — to allow for wastage, uneven ground or slight variations in depth. It's much better to have a little extra than to run short mid-pour.
Why Cubic Metres?
In the UK, ready-mix concrete is measured and delivered in cubic metres (m³). To give you an idea of scale, a typical patio measuring 4 metres by 3 metres with a depth of 100mm would need approximately 1.2m³ of concrete. Our calculator handles the unit conversions automatically, so you don't need to worry about converting millimetres to metres yourself.
What Can You Use It For?
The calculator works for a wide range of projects, including:
- Patios and paths
- Driveways and parking areas
- Shed bases and foundations
- Garage floors
- Fence and gate post footings
- Garden walls and retaining walls
- Agricultural and commercial slabs
Whether it's a small domestic job or a larger commercial project, the calculator gives you a reliable starting estimate.
Ready to Order?
Once you've worked out your volume, the next step is simple. Hit the Get A Quote button on the calculator and we'll be in touch to discuss your requirements, including product selection, pricing and delivery to your site.
We supply ready-mix concrete across North Devon and the surrounding areas, with regular deliveries reaching Rackenford, Lynmouth, Bude, Holsworthy, Okehampton and Copplestone. It's worth bearing in mind that ready-mix concrete has a shelf life of just over two hours from batching, so travel time is an important factor — typically we allow between one and one and a half hours, and less on hot days. That's one of the reasons it's well worth getting your volume right before you order, so everything is ready to go when the mixer arrives.
If you're unsure whether we deliver to your area or which mix is right for your job, our team is always happy to advise.
Try the Concrete Calculator now
Have questions or need help with your order? Give us a call or drop us a message — we're here to help.
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