How Much Gravel for a 12 Foot Circle?
Round areas such as fire pit patios, tree rings and seating circles use less stone than a square of the same width. A 12-foot circle is about 113.1 square feet; at 4 inches that is 2.0 tons of gravel.
Volume and tonnage calculator →The math
- Area: 113.1 sq ft.
- Depth in feet: 4 ÷ 12 = 0.333 ft.
- Cubic yards: 113.1 × 0.333 ÷ 27 = 1.40 yd³.
- Tons: × about 1.4 tons per yard = 2.0 tons.
The gravel calculator does this for any size.
Related: How Much Pea Gravel for a 12 Foot Circle?
Gravel needed by depth
| Depth | Cubic yards | Tons of gravel | Tons +10% |
|---|---|---|---|
| 2 in | 0.70 | 1.0 | 1.1 |
| 3 in | 1.05 | 1.5 | 1.6 |
| 4 in | 1.40 | 2.0 | 2.2 |
| 6 in | 2.09 | 2.9 | 3.2 |
Using a circle of stone
A round gravel area is easy to lay out with a stake and string at the center. Set flexible edging along the line and lay fabric inside before the stone goes in. Rake the stone level after spreading and add a thin top-up after the first season.
Related: How Much River Rock for a 12 Foot Circle?
Buying the stone
If you haul it yourself, a typical half-ton pickup should carry only about half a cubic yard of stone, well under what the bed looks like it can hold. Gravel is a broad label, so confirm whether the yard means crushed or rounded stone and whether it carries fines. Ask your supplier for their own tons-per-yard number, since stone source and moisture change it.
Common mistakes
The most frequent problem is ordering for the finished depth without allowing for compaction, which can shrink a loose layer by 10 to 20 percent. Another is skipping fabric on soft soil and watching the stone vanish into the mud over the first wet season. Spreading everything in one thick layer instead of compacted lifts also leaves a soft, rutted surface.
Tools for the job
A flat shovel, a steel rake, a wheelbarrow and a rented plate compactor cover most residential pads. A landscape rake or the back of a rake levels the top layer, and a long straightedge or a level string shows high and low spots before the final pass.
Questions people ask
How many tons of gravel for a 12 ft circle?
About 2.0 tons at 4 inches deep.
How many square feet is a 12 foot circle?
About 113.1 square feet.
How many tons of gravel are in a cubic yard?
Roughly 1.4 tons for planning, but suppliers vary with stone size and moisture.
Should I put landscape fabric under the stone?
On soft or clay soil, a woven geotextile keeps stone from sinking into the dirt and makes the layer last longer.
Related guides
- Gravel for a Fire Pit Area: Best Types and Depth
- How Much Does a Ton of Gravel Cover? Depth Chart
- Tons to Cubic Yards for Gravel: Conversion Chart
- Crushed Stone vs Gravel: Differences and Best Uses
- Geotextile Fabric for Driveways: Woven vs Nonwoven and How Much You Need
- Compacting a Driveway Gravel Base in Lifts
- How Much Crushed Stone for a 12 Foot Circle?
- How Much #57 Stone for a 12 Foot Circle?
As an Amazon Associate, AsphaltTons.com earns from qualifying purchases. Product links below are sponsored.