Construction

Gravel Calculator

Calculate tons, cubic yards, and costs for gravel, sand, and crushed stone

Quick Answer:A 20x10 ft area at 3 inches deep requires approximately 2.5 tons of gravel (1.85 cubic yards) in 2026. At $35-50 per ton delivered, material cost ranges from $88 to $125.

Area Dimensions

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Expert Insight 2026 Pro Tip

In 2026, bulk gravel delivery costs $30-50 per ton, which is 60-70% cheaper than buying bagged gravel from retail stores. Always lay landscape fabric underneath decorative gravel to prevent weed growth and soil mixing. For driveways, use a layered approach with larger stone at the bottom (4-6") and fine gravel on top (2-3") for best drainage and stability. Compact each layer with a plate compactor for a surface that resists rutting and displacement from vehicle traffic.

Frequently Asked Questions About Gravel

How do I calculate how much gravel I need?

To calculate gravel needed, measure the length and width of your area in feet, and the desired depth in inches. Convert depth to feet by dividing by 12. Multiply length times width times depth to get cubic feet, then divide by 27 to convert to cubic yards. To find tons, multiply cubic yards by the material density -- gravel averages about 1.35 tons per cubic yard. For example, a 20x10 ft area at 3 inches deep equals 50 cubic feet, or 1.85 cubic yards, which is approximately 2.5 tons of gravel. Always order 5-10% extra for compaction and uneven ground.

How deep should gravel be for a driveway?

For a gravel driveway, the recommended total depth is 8-12 inches, typically installed in three layers. The bottom layer should be 4-6 inches of large crushed stone (size #3 or #4) for drainage and stability. The middle layer uses 2-3 inches of medium crushed stone (size #57) for support. The top layer should be 2-3 inches of fine gravel or crusher run for a smooth surface. For foot paths and walkways, 2-3 inches of gravel over landscape fabric is sufficient. Patio base areas typically need 4-6 inches of compacted gravel for proper drainage and stability.

How much does gravel cost per ton in 2026?

In 2026, gravel prices range from $30-75 per ton depending on type and location. Basic crushed limestone averages $30-40 per ton, while pea gravel costs $35-55 per ton. Decorative gravels like river rock or Mexican beach pebbles can cost $80-200 per ton. Delivery fees typically range from $50-150 depending on distance and quantity. Most suppliers require a minimum order of 1-2 tons for delivery. Buying in bulk (10+ tons) often yields significant per-ton discounts of 15-25%. Bagged gravel from hardware stores costs $5-8 per 50-lb bag, which is much more expensive per ton.