Cubic metres to tonnes converter
Convert a volume of aggregate into tonnes and bulk bags in a second. Enter the cubic metres and pick the material.
Convert your volume
Enter the volume in cubic metres and choose the material.
tonnes
Otis converts, prices and orders in one step, on your live stock.
Uses typical densities such as 2.0 tonnes per cubic metre for MOT type 1 and 1.75 for gravel. Materials vary, so treat it as a guide.
How the numbers work
To convert a volume into a weight you multiply the cubic metres by the density of the material, which is its weight per cubic metre. Different materials weigh different amounts, so the tonnage changes with the material you choose.
Bulk bags are taken as about 850kg each and handy bags as 25kg, so you can order in whichever way suits.
This is what Otis does, instantly
A calculator works out quantities. Otis takes a customer question, works out the materials, checks live stock and pricing in the merchant’s own system, builds the quote and takes the order, day or night.
Common questions
How many tonnes in a cubic metre?
It depends on the material. Gravel is about 1.75 tonnes a cubic metre, MOT type 1 about 2.0, and topsoil about 1.5. The tool applies the right density for you.
How do I convert m3 to tonnes?
Multiply the volume in cubic metres by the density of the material in tonnes per cubic metre. This converter does it automatically.
How many bulk bags in a tonne?
Roughly one and a bit, since a bulk bag holds about 850kg. The tool shows the bag count for your volume.
Are these figures exact?
They are typical densities. Real materials vary by moisture and grade, so use it as a close guide and confirm with your merchant.
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From volume to a priced order
Otis converts, prices and takes the order on your live stock in seconds.