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Gravel Calculator

Calculate exactly how much crushed gravel you need for driveways, paths, drainage projects, or base layers. Get cubic yards, weight in tons, total cost, and a bulk-vs-bagged comparison.

You'll need
1.98 cu yd · 27 bags
Cost
$50–$100
Project details
Areas
Area 1
LengthWidthside viewDepth
Area: 160 sq ftVolume: 53.33 cu ft
Total160 sq ft · 53.33 cu ft
Material
Crushed Gravel (#57) · Sharp, angular stones that lock together. Best for driveways and base layers.
Default depth: 4"Density: ~100 lbs/cu ftCompaction: 20% extra
How you'll buy it
💡 Bulk delivery recommended
Your project is ≥1 cubic yard — bulk is usually half the cost of 27 bags.

Leave blank to use estimate

Default: $25–$50/yd

Typical: $50–$120

Extras

Plastic, metal, or stone edging

Cost breakdown

Showing bulk delivery pricing (recommended for your volume).
Crushed Gravel (#57) · 2.00 cu yd$50 – $100
Total project cost$50 – $100
💡 Comparison: 27 bags would cost $108 – $189; bulk (2.00 yd) would cost $50 – $100.

Shopping list

Everything you need for this project.
  • Crushed Gravel (#57) (bulk delivery)2.00 cu yd
  • Wheelbarrow1
  • Garden rake & flat shovel1 set
  • Gloves1 pair
  • Tamper or hand compactor (for compaction)optional
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Math breakdown

Step-by-step from your inputs.
Area 1 · 20 × 8 × 4"/1253.33 cu ft
Total volume53.33 cu ft
Cubic yards · ÷ 271.98 cu yd
Bags · ÷ 2 cu ft per bag27 bags
Weight · @ 100 lbs/cu ft5,333 lbs (2.67 tons)

Pro tips

Compact for 20% more. Crushed gravel compacts hard — toggle the compaction option and the calculator orders the extra material you need to hit your target depth after settling.

Driveways need 4-6 inches. Standard driveway base is 4 inches of #57 stone (3/4 inch crushed). For heavy vehicles, go 6 inches. Always pour over a compacted subgrade.

Bulk is half the cost over 1 yard. Bulk delivery runs $25-$50/yard. Bagged works out to $50-$100/yard equivalent. Above 1 cubic yard, bulk almost always wins.

Frequently asked questions

How many tons of gravel in a cubic yard?▾
Roughly 1.4 tons per cubic yard for crushed gravel (about 2,800 lbs). Pea gravel is similar. Smaller stone like decomposed granite is slightly denser.
How much gravel for a 100 sq ft driveway?▾
At 4 inches deep: about 1.25 cubic yards (1.7 tons). At 6 inches deep: 1.85 cubic yards (2.6 tons). The calculator handles your exact size.
What's the difference between #57 and #2 gravel?▾
#57 is 3/4-inch crushed stone — most common for driveways, drainage, and base layers. #2 is larger (1-2 inch) used for heavy-duty bases or as drainage rock.
Do I need landscape fabric under gravel?▾
Yes for driveways and paths — it keeps the gravel from sinking into the soil and stops weeds. Cheap insurance at $0.10-$0.30 per sq ft.

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Disclaimer. This calculator provides estimates for planning purposes. Actual material quantities and costs may vary based on site conditions, material availability, and local pricing.