Ready Mix Concrete Calculator
About Ready Mix Concrete Calculator
Ready Mix Concrete Calculator produces the delivery volume to quote a supplier, in cubic metres and cubic yards at the same time. A standard mixer truck carries 6 to 8 m3, roughly 8 to 10 cubic yards, and most suppliers apply a minimum load charge below about 3 m3 plus a part load surcharge on anything that is not a full truck. That pricing structure is why the waste allowance matters more on a ready mix order than on a bag order: coming up half a cubic metre short means paying a second delivery fee for a fraction of a load, while ordering 10 percent over costs only the price of the extra concrete. Site access also belongs in the plan, since a truck chute reaches roughly 3 to 4 m and anything beyond that needs barrows, a pump or a longer chute arranged in advance. Give the supplier your volume, the required strength grade such as C25/30 or a 3,000 psi mix, and any slump or fibre requirement together, because those are set when the load is batched and cannot be changed on site.
How to use Ready Mix Concrete Calculator
- Choose metric or imperial input
- Enter length, width, and depth of your slab
- See volume and bag count in both metric and imperial instantly
Frequently Asked Questions
- How much ready mix concrete should I order?
- Calculate the volume of your pour and add a waste allowance of 10 percent, then round up to the nearest quarter cubic metre or quarter cubic yard. Ordering slightly over is cheaper than the part load fee on a second delivery.
- How much concrete does a mixer truck hold?
- A standard truck carries 6 to 8 m3, which is about 8 to 10 cubic yards. Smaller mini mix trucks carrying 1 to 4 m3 are available in many areas and suit sites with restricted access.
- Is there a minimum order for ready mix concrete?
- Most suppliers apply a minimum load charge, commonly around 3 m3 in the UK or 1 cubic yard in the US, and add a part load surcharge below a full truck. That fixed cost is why pours under about 1 m3 are usually cheaper with bags.
- What concrete grade should I order?
- C20/25 is typical for non structural domestic slabs, C25/30 for driveways and general use, and C30/37 or higher where an engineer specifies it. In US terms these correspond roughly to 3,000 to 4,000 psi mixes. Grade is set at batching, so specify it when ordering.
- How far can a mixer truck chute reach?
- Roughly 3 to 4 m from the back of the truck. Beyond that you need barrows, a chute extension or a concrete pump, and pumps must be booked in advance. Confirm access, ground conditions and reach with the supplier before the delivery date.
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