The following gravel and pebble calculator will provide an estimate of the amount of stone required for your project. If in doubt, we advise you to round up the nearest higher quantity rather than round down as it can be expensive to order smaller quantities to top up. 

Enter the length and the width of the area you are planning to cover. Add the depth of stone you require and the calculations on the left will indicate the quantity of stone you require. Please note that larger stone will not offer as much coverage. 

RESULT in KG
1000kg = 1 tonne:

Area: - M
Vol: - M3
KG: - KG 

 mm
Enter the depth here


 Metres
Enter the width here

 Metres
Enter the length here


This tool offers a guide to the quantity of stone required, but cannot provide an exact calculation due to variations in material coverage and contours of the area to be covered.