Concrete Calculator

Gravel Calculator

Volume = length × width × depth. 1 cubic yard = 27 cubic feet. Tons depend on material density, so the density used is shown in the result.

Area: - sq ft
Volume: - cubic yards
Weight: - tons
To order (with waste and compaction): - tons / - cubic yards
50 lb bags: -
Material cost: $-

Estimate only. Density varies by quarry and moisture. For large orders, confirm with your supplier's scale ticket. Delivery, minimum order and labour are usually extra.

Estimate concrete for slabs and fence posts.

Slab

Slab volume = length x width x thickness, in cubic yards. Add 10 percent waste.

Fence post hole

Volume of the hole minus the post. Uses: shed bases, fence posts, patio bases.

Bags

One 80 lb bag makes about 0.6 cubic feet, so one cubic yard needs about 45 bags, before waste.

Estimate only. Confirm with your supplier before ordering.