Gravel Calculator

Convert gravel volume to tonnes.

Explanation

Planning a gravel driveway or patio requires a good tonnage estimate. Gravel is much heavier than you think! ### Gravel Density Average density is about **1.5 tons per cubic meter** (or approx 2500 lbs per cubic yard). ### Recommended Depth - **Walkway**: 1.5 to 2 inches (3-5 cm). - **Driveway**: 2 to 3 inches (5-8 cm). Too deep and cars will sink. ### Calculation 1. Calculate Volume: Area x Depth. 2. Multiply by density. 3. Add 5-10% margin for compaction.

Examples

Driveway 500 sq ft, 2 inches deep. Volume ≈ 3 cubic yards. Weight ≈ 4 tons.
A standard pickup truck can carry about 0.5 to 1 ton max.

FAQ

Do I need landscape fabric?

YES! Essential to prevent weeds and stop gravel from mixing with the soil.

Which gravel type?

For driveways, use crushed stone (angular) which locks together. Pea gravel (round) rolls and is unstable for cars.

Disclaimer

Always verify calculations with an architect or engineer before starting work.