Gravel Calculator — Estimate Cubic Yards, Tons & Cost

How to calculate how much gravel you need?

Gravel is estimated by volume. Multiply the area you're covering by the depth of the gravel layer to get the volume, then convert that volume to weight using the density of your chosen material. In formula form: Volume = Area × Depth, and Weight = Volume × Density.

How deep should a gravel layer be?

For most landscaping and ground-cover uses, a gravel depth of 2 to 4 inches works well. Walkways and decorative beds are usually fine at 2 inches, while driveways that carry vehicle weight are typically built up in layers to a total of 4 to 6 inches or more over a compacted base. When in doubt, go a little deeper — a thin layer shifts and shows the ground beneath.

How much does a cubic yard of gravel weigh?

A cubic yard of typical dry gravel weighs roughly 1.4 to 1.5 US tons (about 2,800–3,000 lb), but the exact figure depends on the stone type, size and moisture. Wet gravel and gravel mixed with sand are heavier; loose decorative stone like pea gravel is a bit lighter. This calculator uses per-material densities so the tonnage reflects the specific product you pick.