How many tons of gravel do I need for a 20x10 foot driveway?

For a 20x10 foot driveway with 3-inch depth, you'll need approximately 11 tons of standard gravel. The calculation is: (20 × 10 × 0.25 = 50 cubic feet) ÷ 27 = 1.85 cubic yards × 1.4 tons per cubic yard = 2.6 tons, rounded up to 3 tons for safety.

What's the difference between cubic yards and tons for gravel?

Cubic yards measure volume (the space gravel fills), while tons measure weight (how much the gravel weighs). Different gravel types have different densities, so the same volume can have different weights. This calculator handles both measurements for accurate ordering.

How much gravel should I order for my project?

Always order 10-15% more than your calculated amount. Gravel compacts over time, and irregular shapes or uneven ground require more material. It's better to have a little extra than to run short and pay for another delivery.

What depth of gravel do I need for a driveway?

Residential driveways typically need 3-4 inches of compacted gravel for cars and light trucks. For heavier vehicles or high-traffic areas, consider 4-6 inches. Deeper layers provide better stability and last longer.

Which gravel type should I use for my project?

Standard gravel works for most projects. Use crushed stone for driveways and high-traffic areas because it locks together. Pea gravel is ideal for decorative areas and walkways. River rock provides a natural look for garden beds and water features.

Can I use this calculator for commercial gravel projects?

Yes, but commercial projects may have different requirements including specific gravel sizes, compaction standards, and engineering specifications. Consult with a civil engineer or contractor for large-scale or public infrastructure projects.

Gravel Calculator

Calculate the amount of gravel needed for driveways, walkways, and landscaping projects. Estimate cubic yards, tons, and bags needed based on area dimensions, depth, and gravel type with multiple material options.

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Common Project Sizes

Popular gravel project dimensions for quick estimation

Area Dimensions & Gravel Type

Enter project area, depth, and select gravel type

Length (ft)

Width (ft)

Depth (inches)

Gravel Type

How it works: Enter your project dimensions and desired depth. The calculator estimates the volume in cubic yards and converts to tons based on the selected gravel type's density.

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