Gravel Calculator

Our gravel calculator provides a rough guide to how much gravel you will need to cover a specific area (such as a driveway). It should help you estimate the amount of stone you will need. The depth will depend on the size of the material as well as its intended use.

To calculate an area using our aggregate calculator, first choose the unit of measurement on the left hand side, the default is kilograms and metres but this can be changed to tonnes/feet. Next, enter the length and width of the area followed by the intended depth of the gravel. The instant results on the left hand side of the aggregate calculator will show you the total area, volume and weight required including how many 20kg bags or bulk bags of gravel this equates to.

Our gravel calculator will help to answer the question - how much gravel do I need? If you are still struggling to work out how much stone you require, please contact us. When you've worked out the quantity required, feel free to browse our huge range of decorative gravel.

Gravel, Chippings and most Pebbles	Cobbles	Rubber Chippings
Useful Coverage recommended depth 50mm	Useful Coverage recommended depth 100mm	As rubber chippings have a different density than gravel, please use the following table to calculate quantities required:
1 bag = 0.25m2 approx.	1 bag = 0.12m2 approx.
4 bags = 1m2 approx.	8 bags = 1m2 approx.
1 Bulk Bag (850kg) = 10m2 approx.	1 Bulk Bag (850kg) = 5m2 approx.

Units: metres ft

Area: m²

Vol: m³

Weight: kg

Bags:

Bulk Bags:

mm

m

m