Gravel Calculator

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Fill Dirt Calculator

Enter the size and depth of the area. You get the fill dirt you need in cubic yards, tons and bags, plus a cost estimate.

ft
ft
ft
sq ft
in
Set the depth to the low spot you are filling.
tons
Change it to your supplier's figure.
%
Rochester Concrete Products' install guide adds 10% for compaction and uneven ground.
cu ft
Read the bag size off the label.
$

Enter your numbers and press Calculate.

How much fill dirt you need

Cubic yards = length (ft) × width (ft) × depth (in) ÷ 12 ÷ 27. Tons = cubic yards × 1.03.

Example: a 10 × 10 ft area at 6 inches deep is 50.0 cubic feet, or 1.85 cubic yards. At 1.03 tons per cubic yard that is 1.90 tons, or 100 bags of 0.5 cu ft.

Set the depth to the low spot you are filling.

How far one yard and one ton go

Depth1 cubic yard covers1 ton covers
1 in324 sq ft316 sq ft
2 in162 sq ft158 sq ft
3 in108 sq ft105 sq ft
4 in81 sq ft79 sq ft
6 in54 sq ft53 sq ft

Ton figures use 1.03 tons per cubic yard.

Weight and price

Engineering ToolBox lists loose dry dirt at 76 lb per cubic foot, about 1.03 tons per cubic yard, and loose moist dirt at 78 lb.

HomeGuide puts fill dirt at $5 to $25 per cubic yard. The price box above starts at the middle of that range; type in your supplier's quote for a real number.

Common questions

How many tons are in a cubic yard of fill dirt?

About 1.03 tons. Engineering ToolBox lists loose dry dirt at 76 lb per cubic foot, about 1.03 tons per cubic yard, and loose moist dirt at 78 lb.

How much area does a ton of fill dirt cover?

About 158 sq ft at 2 inches deep, or 105 sq ft at 3 inches.

How much does fill dirt cost?

HomeGuide puts fill dirt at $5 to $25 per cubic yard. Delivery is often extra.

Sources

  • https://www.engineeringtoolbox.com/dirt-mud-densities-d_1727.html
  • https://homeguide.com/costs/fill-dirt-sand-topsoil-cost