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Cubic yard calculator

How much concrete, gravel, soil or mulch fills an area to a given depth. Enter length and width in feet and the depth in inches; it returns the volume in cubic yards (how material is sold in the US) and cubic feet.

Related tools

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The Cubic yard calculator turns Length (ft), Width (ft), Depth (in) into Cubic yards, Cubic feet, instantly and for free. For instance, with Length (ft) = 12, Width (ft) = 10 and Depth (in) = 4 it returns Cubic yards = 1.481 and Cubic feet = 40.

How to use it

  1. Enter your values: Length (ft), Width (ft), Depth (in).
  2. Read the result instantly: Cubic yards, Cubic feet.

Frequently asked questions

How does the Cubic yard calculator work?

It takes Length (ft), Width (ft) and Depth (in) and derives Cubic yards and Cubic feet from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

3 values: Length (ft), Width (ft) and Depth (in). Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Length (ft) = 12, Width (ft) = 10 and Depth (in) = 4, the calculator returns Cubic yards = 1.481 and Cubic feet = 40. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Length (ft) = 24, Width (ft) = 20 and Depth (in) = 8 instead, Cubic yards goes from 1.481 to 11.852 — which is why it is worth testing a few scenarios rather than trusting a single figure.

What does it give for smaller values?

Scaled down to Length (ft) = 6, Width (ft) = 5 and Depth (in) = 2, Cubic yards comes out at 0.185. The relationship is worth checking at both ends before you rely on a single result.

When would I actually use this?

Buying the right amount at the merchant: how many tiles, how much paint, how many bags of concrete, and what it all comes to.

What is the most common mistake?

Ordering the exact calculated quantity. Cuts, breakage and pattern matching mean tiles need 10% spare and more on a diagonal layout — and a second batch rarely matches the first for colour.

What is the difference between the Cubic yard calculator and the Concrete calculator?

This one returns Cubic yards and Cubic feet; the Concrete calculator returns Concrete volume (m³) and Approx. weight (kg). That is the whole difference — open the one whose figure you need.

Is there a tool for the next step?

Deck stain calculator is the closest one after this: How much stain a deck needs: the surface area of the boards, the railing and the stairs, divided by the coverage of your stain — which drops for solid stains and for rough or weathered wood — times the number of coats. Enter dimensions and it returns the gallons and, optionally, the cost.

What else is worth having open alongside it?

Paver Calculator and Pool volume calculator — they come up in the same task often enough to be worth a second tab.

Further reading

All guides →
How-toHow to Calculate Pool Volume: A Formula per Shape, and the Depth TrapLength × width × average depth gives 21,065 gallons for a 32 by 16 ft pool. But average depth only means (shallow + deep) ÷ 2 when the floor slopes evenly, and most pools do not. Here is every shape formula and the correction.How-toHow Much Gravel Do I Need?Multiply area by depth for a volume, then convert to weight — gravel is about 1.5 tonnes per cubic metre. Here's the method, depths by job, and how to order.How-toHow to Measure Roof PitchRoof pitch is rise over run, like 6:12. Here's how to measure it with a level, how to convert it to an angle or percentage, and why it matters.GuideMaterials for a Retaining Wall — And the Thing That Actually Makes Them Fall OverBlocks, base gravel, drainage stone, geogrid and pipe, counted from the calculator's own output. Then the number nobody puts in a materials list: a saturated backfill pushes about 2.2 times as hard as a drained one.How-toHow Much Concrete Do You Need for Fence Posts?Work out the concrete for setting fence posts: hole volume minus the post, converted into bags of ready-mix, with the rule of thumb for hole depth and width.How-toHow Much Sand Do I Need? Volume and Weight Made EasySize a sand order from area and depth: get the volume in cubic yards and the weight in tons for a bedding layer, sandbox or base course.