Gravel Calculator
Eight grades, each with its own weight per cubic yard.
Rock & Gravel Calculators
Gravel is priced by the ton and planned by the area, and every grade weighs something different. Each of these applies the density of the specific stone rather than one average figure.
River Rock Calculator
Tons and coverage by rock size, from 1-3" to 3-5".
Pea Gravel Calculator
Patios, dog runs and the joints between flagstone.
Decomposed Granite Calculator
Tons, yards and stabilizer, with compaction allowed for.
What these have in common
Every calculator here returns the same three things: cubic yards, tons and a bag count, because suppliers quote in all three and rarely in the one you asked for. Each also shows its working, so you can check the figure rather than trust it.
Densities come from one shared table, which means a chart on one page can never contradict the tool on another. Where a material genuinely varies, the page says so and lets you type your own figure in. Nothing here needs an email address.