Backyard Numbers

Know exactly how much to order.

Free calculators for gravel, mulch, topsoil, asphalt, pavers and retaining walls. Enter your measurements and get cubic yards, tons, bags and cost in seconds.

All calculators

No sign-up. Works on your phone.

How it works

Measure

Length and width in feet, depth in inches. For odd shapes, split them into rectangles and circles.

Calculate

Pick your material. We convert to cubic yards, tons and bags using typical weights, and show the formula.

Order

Add a little extra for waste and settling, then order from your supplier with confidence.

27cubic feet in one cubic yard
324sq ft one yard covers at 1 in deep
≈1.35tons in a yard of crushed stone
13.5bags of 2 ft³ mulch per yard

Why our numbers may differ from a supplier's

Bulk materials are sold by volume (cubic yards) or by weight (tons). How much a cubic yard weighs depends on the material, how wet it is and how tightly it packs. We use typical industry weights and show them on every page. If your supplier quotes a different weight per yard, enter theirs.