Overview
What Is a Gravel Calculator?
This tool calculates the volume of gravel needed for a driveway, path, or other project based on area and desired depth.
Calculate how much gravel you need in cubic yards.
This tool calculates the volume of gravel needed for a driveway, path, or other project based on area and desired depth.
Useful for planning gravel purchases for driveways, walkways, and drainage projects.
Input length and width.
Input how thick you want the gravel layer.
The result in cubic yards updates automatically.
4-6 inches is common for a base layer, sometimes with additional layers for a finished surface.
Volume = Length × Width × Depth, converted to cubic yards.
Both conventions exist - by cubic yard (volume) or by ton (weight), depending on the supplier.
The volume calculation is the same regardless of gravel type - only the volume-to-weight conversion would differ by material density.
A small buffer is wise to account for settling and uneven distribution, though gravel doesn't waste like some materials.
No, calculations happen entirely in your browser.
Break irregular shapes into rectangular sections, calculate each, and add them together.
Yes, calculating gravel volume for French drains or drainage beds follows the same method.
This varies by gravel type, but a common approximation is about 1.4-1.5 tons per cubic yard - check with your specific supplier.
Yes, completely free with no sign-up required.