Cubic Yard Calculator (cubicyardcalculatoronline.com) is a free online tool that helps homeowners, DIYers, gardeners, and landscapers work out exactly how much material a project needs — in cubic yards, cubic feet, tons, bags, and estimated cost. Whether you are topping up a garden bed with mulch, laying a gravel driveway, pouring a concrete slab, or ordering topsoil, sand, or dirt, the calculator turns a few simple measurements into a clear answer in seconds.
Enter the length, width, and depth of the area — or use the circle and area modes for round beds and known square footage — choose the material, and the calculator shows the volume, the estimated weight, how many bags you would need for a small job, and the total cost if you add your supplier’s price. A suggested order amount adds a 10% allowance for spillage and compaction, so you can order once and order right.
Our estimates use typical average densities for each material and a built-in waste allowance. Real materials vary: wet topsoil weighs more than dry topsoil, and densities differ between suppliers and regions. Treat every result as a planning estimate, and always confirm final quantities, delivery options, and prices with your local supplier before ordering.
The calculator is free to use, with no account or sign-up required. If you spot a mistake, have a suggestion, or would like a material added, we would love to hear from you — see our Contact Us page. You can also use the calculator to compare materials and prices side by side before you buy.