Construction & DIY

Calculate the square footage of a room or area - rectangle, circle, triangle, trapezoid, or L-shape - with instant results in square feet, square yards, square meters, or acres.

Estimate how much gravel you need - enter the area and depth to get the volume in cubic yards and cubic feet, an approximate weight in tons, and a bag count, with an optional allowance for waste and compaction.

Estimate how much mulch you need for a bed or landscaped area - enter the area and depth to get the volume in cubic yards and cubic feet, two- and three-cubic-foot bag counts, and an approximate weight, with an optional settling allowance.

Estimate how much topsoil you need for a raised bed, garden, or lawn project - enter the area and depth to get the volume in cubic yards and cubic feet, one- and one-and-a-half-cubic-foot bag counts, and an approximate weight range, with an optional allowance for settling.

Estimate how many pavers you need for a patio, walkway, or driveway - enter the area and your paver size to get the paver count with a waste allowance you control, plus planning estimates for the compacted gravel base and bedding sand underneath.

Estimate how much sod you need for a lawn - enter the area to get the square feet and square yards to order, with a waste allowance you control plus roll, piece, and pallet estimates.

Estimate how much stone dust you need - also known as crusher dust or stone screenings - by entering the area and depth to get the volume in cubic yards and cubic feet, an approximate 0.5-cubic-foot bag count, and a weight range in US tons, with an optional additive allowance for compaction and waste.

Estimate how much river rock you need for a garden bed, border, path, or dry creek bed - choose US Customary or Metric units, enter the area and depth, and get the volume, an approximate weight, a bag count, and a waste-adjusted order quantity.

Estimate the concrete volume for a slab, beam, footing or column and the cement bags, sand and aggregate for your mix ratio, with an optional water estimate.

Calculate the bitumen binder, aggregate and total asphalt mixture mass for a paved area from its length, width, compacted thickness, density and binder percentage.