Gravel Calculator
Gravel calculator: find the cubic yards and tons of gravel, crushed stone or sand a driveway or path needs.
Editorial review: Farrow (pseudonym; identity and professional credentials are not disclosed). This page is for educational purposes, not professional advice.
Updated
Your inputs
Results update as you type. Nothing you enter leaves your device.
Results
- Cubic yards
- 5.93
- With 10% extra (tons)
- 9.13
- Estimated cost
- $365
Example with the starting values
These results use the calculator's initial inputs. Change the values above to calculate your own estimate.
Inputs
- Length
- 40 ft
- Width
- 12 ft
- Depth
- 4 in
- Material
- Crushed stone
- Price per ton
- 40 $
Results
- Tons needed
- 8.3
- Cubic yards
- 5.93
- With 10% extra (tons)
- 9.13
- Estimated cost
- $365
How does the Gravel Calculator work?
Volume is length times width times depth, with depth converted from inches to feet. Dividing cubic feet by 27 gives cubic yards.
Tons come from the material's weight per cubic yard. Add about 10% extra for settling and uneven ground.
Frequently asked questions
How deep should a gravel driveway be?
A depth of 4 to 6 inches works for most driveways. Heavy traffic may need more.
How many tons are in a cubic yard of gravel?
Crushed stone weighs about 1.4 tons per cubic yard, though it varies by type and moisture.
Should I order extra?
Yes, 5% to 10% extra covers compaction and spillage.
How do I measure an odd-shaped area?
Split it into rectangles, calculate each volume and add them together.