How much do you need?

Free, fast calculators that tell you exactly how much concrete, gravel, mulch, topsoil and other materials to buy for your home and yard projects. No sign-up, no clutter, works on your phone in the store aisle.

Concrete

Concrete CalculatorCubic yards and 40/60/80 lb bag counts for slabs, footings and posts.

Landscaping and yard

Gravel CalculatorCubic yards and tons of gravel, stone or sand for any area.
Mulch CalculatorCubic yards or 2 and 3 cu ft bags for any bed size and depth.
Topsoil CalculatorCubic yards, tons and bags of topsoil or fill dirt.

Area and volume

Square Footage CalculatorSquare feet of any room, yard or lot, area by area.
Cubic Yard CalculatorLength, width and depth to cubic yards, feet and meters.

Why trust these numbers

Every default comes from a published source: manufacturer data sheets for bag yields, university extension guides for depths, and NIST for unit conversions. Each calculator lists its sources and shows the formula, so you can check the math yourself. Read how we calculate.