How this estimate works
The calculator applies: length x width x depth x density / 1000 x (1 + waste/100). Keep measurements in one unit system and round up when suppliers sell whole units.
Limitations
Compaction, moisture, grading, delivery minimums, and sub-base conditions affect the order.
Source to check
Read the authoritative guidance for gravel calculator
Frequently asked question
Why include compaction? Loose delivered aggregate settles after placement and compaction.