Cubic Yards to Acres
Enter cubic yards and a depth. See how many acres it covers, plus the exact volume in acre-feet and acre-inches.
How much ground will it cover?
Enter your cubic yards and how deep you’ll spread them. At 1 foot deep, acres covered equals acre-feet.
How it’s calculated
Every step uses the numbers you entered above.
Cubic yards to cubic feet
Depth in feet
Cubic feet ÷ depth = area
Square feet to acres
Cubic yards to acre-feet and acres covered
One acre-foot is exactly 1,613.33 cubic yards. Tap an amount to load it into the calculator.
| Cubic yards | Acre-feet | Acres at 6 in | Acres at 1 in |
|---|---|---|---|
| 1 yd³ | 0.00062 | 0.00124 | 0.00744 |
| 10 yd³ | 0.0062 | 0.0124 | 0.0744 |
| 27 yd³ | 0.0167 | 0.0335 | 0.20 |
| 50 yd³ | 0.031 | 0.062 | 0.37 |
| 100 yd³ | 0.062 | 0.12 | 0.74 |
| 250 yd³ | 0.15 | 0.31 | 1.86 |
| 500 yd³ | 0.31 | 0.62 | 3.72 |
| 1,000 yd³ | 0.62 | 1.24 | 7.44 |
| 1,613.33 yd³ | 1.00 | 2.00 | 12.00 |
| 5,000 yd³ | 3.10 | 6.20 | 37.19 |
| 10,000 yd³ | 6.20 | 12.40 | 74.38 |
Why cubic yards need a depth to become acres
To convert cubic yards to acres, you need a depth. A cubic yard is a volume (27 cubic feet), while an acre is an area of land (43,560 square feet, per NIST’s unit conversion factors). A pile of material only turns into acres once you decide how thick to spread it. The thinner the layer, the more ground it covers.
That’s why acre-based volume units carry their depth with them. An acre-foot is one acre covered one foot deep, and an acre-inch is one acre covered one inch deep. To convert cubic yards to acre-feet, divide by 1,613.33. For acre-inches, divide by 134.44.
| Unit | What it means | Cubic yards |
|---|---|---|
| Acre-inch | One acre, 1 in deep | 134.44 |
| Acre-foot | One acre, 1 ft deep | 1,613.33 |
| Acre at 1 yd deep | One acre, 3 ft deep | 4,840 |
The table gives you a quick formula for any depth: acres covered = cubic yards ÷ (134.44 × depth in inches). At exactly 1 foot deep, acres covered and acre-feet come out to the same number. That’s why most converters answer “cubic yards to acres” with an acre-foot figure.
A common mistake is dividing cubic yards by 4,840, the number of square yards in an acre. That tells you how many acres the material covers 1 yard (3 ft) deep, which is only a third of the 1-foot answer. For example, 100 cubic yards ÷ 4,840 = 0.021 acre, but at 1 ft deep the same 100 cubic yards covers 0.062 acre. If you’re starting from the land instead, use the acres to cubic yards calculator.
Worked examples: from cubic yards to acres covered
How much land a cubic yard covers depends on the depth. At 1 inch, one cubic yard covers about 0.0074 acre. Spread 100 cubic yards ¼ inch thick and you’ll cover almost 3 acres. At 6 inches, the same amount covers about an eighth of an acre.
100 yd³ of compost, ¼ in topdressing
A light compost layer raked into an existing lawn or pasture.
100 yd³ spread 1 in deep
A thin, even layer of compost or screened soil.
1,000 yd³ of topsoil, 6 in deep
Topsoil spread over graded ground before seeding or sod.
25 yd³ of topsoil, 3 in deep
A typical residential delivery for regrading a yard.
To find how many cubic yards it takes to cover an acre, multiply 134.44 by the depth in inches. For example, 1 acre at 2 inches deep takes about 268.89 cubic yards.
Use the finished depth the job calls for. You can look up typical depths for compost, topsoil, mulch and fill in the material depth chart. The quick depth chips in the calculator above cover the common range, from a ¼-inch topdressing to 2 feet of fill. If you’re ordering compost, the compost calculator can size the delivery for you.
Keep in mind that real coverage is usually a little less than the math. Loose material settles once it’s spread and rolled, and no ground is perfectly level. It’s safer to order slightly more than the calculated amount.
Pond and water jobs: cubic yards dug vs. acre-feet stored
To find how many acre-feet a pond holds, divide the cubic yards dug by 1,613.33. If you only know the pond’s size, multiply its surface acres by its average depth in feet. Either way, one acre-foot is about 325,851 US gallons, per the USGS water conversion factors. That works out to roughly 201.97 gallons per cubic yard.
Both units come up on the same pond job. Excavation is quoted and billed in cubic yards, while storage, irrigation and water rights are measured in acre-feet or gallons.
From the cubic yards dug
If your excavation invoice lists the yards removed, divide by 1,613.33 to get acre-feet. Multiply that result by 325,851 to get gallons.
5,000 yd³ dug-out pond
A pond dug entirely below the original ground, with 5,000 cubic yards removed.
From the pond’s size
Most pond owners know the surface area and roughly how deep the water is, but not how many yards were dug. To calculate acre-feet in that case, multiply the surface acres by the average depth in feet. To get cubic yards, multiply the acre-feet by 1,613.33. The average depth is an estimate, and it’s always less than the deepest point because of the sloped sides. If you use the maximum depth, you’ll overstate how much water the pond holds.
1.5-acre pond, 6 ft average depth
An existing farm pond measured at the waterline.
Keep one limit in mind. The volume you dig only equals the water you store for the part of the hole below the water line. Side slopes, a dam or berm that holds water above the original ground, and the dry margin below the spillway all change the real capacity. For anything that holds back water, go by the designer’s figures. For a closer look at the unit, see acre-feet to cubic yards. To convert any volume into gallons, use the cubic yards to gallons converter.
Cubic yards to acres FAQs
How many cubic yards are in an acre?
It depends on the depth, because an acre is a flat area. Covering an acre takes about 134.44 cubic yards per inch of depth, or 1,613.33 cubic yards per foot. So one acre filled one foot deep holds 1,613.33 cubic yards.
How many yards are in an acre?
An acre contains 4,840 square yards, and 2 acres contain 9,680 square yards. A square acre measures about 69.6 yards on each side. These are square yards, which measure area. They aren’t the cubic yards used for material orders.
How many cubic feet are in 1 acre?
An acre has no cubic feet until you give it a depth. One acre covered one foot deep, which is one acre-foot, equals 43,560 cubic feet. One acre covered one inch deep equals 3,630 cubic feet.
How big is 1 cubic yard?
One cubic yard is a cube 3 feet long, 3 feet wide and 3 feet high, which equals 27 cubic feet. Two cubic yards is 54 cubic feet, and 5 cubic yards is 135 cubic feet. See what a cubic yard is for more detail.
Why do some converters show slightly different acre-foot numbers?
Until 2023, the acre-foot was based on the U.S. survey foot, which is slightly longer than the international foot used today (see NIST on the U.S. survey foot). In today’s cubic yards, an old survey acre-foot is about 1,613.34 cubic yards instead of 1,613.33. That difference is too small to matter on any job. If you see “134.89 cubic yards per acre-inch,” that’s a calculation error; the correct figure is 134.44.