Cubic Yard Calculator

The depth decision doubles or halves your order, so get it right: mulch wants 2–3 inches (a common instinct is 4+, which suffocates roots and invites fungus — more mulch is not more love); topsoil for a new lawn 4–6 inches; garden bed amendments 2–3 inches tilled in; gravel driveways about 4 inches over fabric, ideally in two compacted lifts; concrete slabs 4 inches for walkways and patios, 5–6 for driveways. When redoing an existing bed, measure what's left and only order the difference.

Depends entirely on the material, and this is how tailgates die: a yard of dry mulch (~800 lb) fits a half-ton pickup fine; a yard of topsoil (~2,000 lb, more when wet) is at or past most half-ton payloads; a yard of gravel or sand (~2,700–2,800 lb) requires a heavy-duty truck or a trailer. Note that payload includes you and your passengers. Most suppliers deliver for $50–100 — cheap insurance against a sagging axle and a second trip.

Around one cubic yard. A yard equals 13.5 of the standard 2-cubic-foot bags, and bagged material typically runs two to three times the bulk price per volume — so small jobs (a few bags) favor bags for convenience and a clean trunk, while anything at a yard or more favors bulk delivery decisively. The bag count shown does this math for your exact project. One bulk caveat: you'll need a tarp-able driveway spot and a wheelbarrow afternoon.

Circles: area is π × radius² — a 10-ft-diameter bed is 78.5 sq ft, so enter it as roughly 8.75 × 9 (any length × width with the same product works, since the calculator just needs area × depth). Irregular beds: break them into rectangles and sum, or pace the rough overall rectangle and accept the 10% cushion will absorb the slop. Precision beyond ~5% is wasted effort here — settling, grade, and the loader operator's scoop generosity vary more than your measurement error.