Gravel Calculator
Calculate the cubic yards and tons of gravel you need from an area and depth, for a path, a driveway base or backfill around posts.
Use this free gravel calculator to work out the cubic yards and tons of gravel you need from an area and depth, for a path, a driveway base or backfill around posts. It answers how much gravel you need and how many tons in a cubic yard, with the density editable for your stone. Everything runs in your browser.
Read the guide: How Much Gravel Do I Need?Gravel
Cubic yards
1.85
2.59 tons · 50 ft³
- Tons (by weight)
- 2.59
- Cubic feet
- 50
- Area
- 200 ft²
- Depth
- 3 in
Bulk gravel is sold by the cubic yard or by the ton. Order about 5–10% extra so the surface settles and compacts level.
Density varies by stone type and moisture. Pea gravel is lighter than crushed limestone, so confirm the supplier's t/yd³ for the exact tonnage.
How it works
- 1
Measure the area
Enter the length and width of the area you are covering.
- 2
Set the depth
Type the depth in inches. Two to three inches suits a path, four or more a driveway base.
- 3
Read the volume
See the cubic yards, the tons by weight and the cubic feet.
Instant & 100% private — nothing is uploaded
Every calculation runs locally in your browser. The income, balances and goals you enter stay on your own device and are never sent to a server — nothing is stored, logged or shared.
Frequently asked questions
- How do I calculate gravel in cubic yards?
- Multiply length by width by depth in feet for the cubic feet, then divide by 27 for cubic yards. The calculator does this from inches and adds the tonnage.
- How many tons of gravel in a cubic yard?
- Crushed stone runs about 1.4 tons per cubic yard, though pea gravel is lighter. The default is editable, so set your supplier’s figure for an exact tonnage.
- How deep should gravel be?
- A walking path needs two to three inches; a driveway wants four or more over a compacted base. Order a little extra so it settles level.
- How accurate is the gravel amount?
- The volume is exact for the area and depth you enter; the tonnage depends on the stone. Pea gravel, crushed stone and road base weigh differently, so set your supplier’s density, and order a little extra so the surface settles level.
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