Calculate concrete, gravel, mulch, dirt, sand, and rock in cubic yards. Enter your dimensions to get volume, weight, and a 10 percent overage recommendation — free, no signup.
Length and width in feet, depth in feet, inches or yards. Pick your material for a weight estimate.
Quick answer: 1 cubic yard = 27 cubic feet (3 ft × 3 ft × 3 ft). To find cubic yards, multiply length × width × depth in feet and divide by 27. Example: a 10 × 10 ft area at 4 inches deep needs (10 × 10 × 0.333) / 27 = 1.23 cubic yards before overage.
Ballpark, not gospel. This estimates volume and weight from the numbers you punch in — densities are typical values that change with moisture and compaction. Always confirm with your supplier before ordering or hauling.
A cube 3 feet on every side — 27 cubic feet. It's how suppliers sell concrete, gravel, mulch, dirt and sand, because these materials are delivered by volume, not by piece.
Length × width × depth, all in feet, divided by 27. Got inches? Divide by 12 first. A 10×10 ft slab at 4 inches deep is (10 × 10 × 0.333) / 27 = 1.23 cubic yards.
Ground is never perfectly level, forms leak, and wheelbarrows spill. Every calculator here adds a 10% overage suggestion — the industry standard before supplier minimums.
Thirty free calculators — volume, weight, bag counts, cost, and conversions, all in one place.
The reference pages people come back to — costs, coverage, and the formula itself.
Multiply length by width by depth in feet, then divide the total cubic feet by 27. If depth is in inches, divide the inches by 12 before using the formula.
A cubic yard is a volume that measures 3 feet long, 3 feet wide, and 3 feet deep. It equals 27 cubic feet.
There are 27 cubic feet in 1 cubic yard. Multiply cubic yards by 27 to convert to cubic feet.
Multiply square feet by depth in feet, then divide by 27. For example, 300 square feet at 3 inches deep is 300 × 0.25 / 27, or 2.78 cubic yards.
A cubic yard of concrete takes about 45 bags of 80 lb mix, 60 bags of 60 lb mix, or 90 bags of 40 lb mix. Always round up and add 10 percent overage.
The formula is length × width × depth in feet divided by 27. The result is cubic yards.
Yes, most projects should include about 10 percent extra. This covers compaction, uneven ground, spillage, and small measuring differences.
A standard 6 cubic foot wheelbarrow holds about 0.22 cubic yards, so one cubic yard is roughly 4 to 5 heaped wheelbarrow loads.