Calculator

Gravel Calculator

Crushed stone, pea gravel, or river rock — get cubic yards, tons, and bag count for any shape. A ton of gravel covers ~0.75 yd³.

~100 lb/ft³ 4" default depth 0.5 / 1 / 2 cu ft bags tons output

Pick a shape

step 1 of 3

Area: 80 sq ft

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Length (ft)

Width (ft)

Depth (in)

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Bag size

+5% settling buffer Gravel settles after a few rains. Recommended on.

Cost compare (bulk vs bagged)

Bulk $ / cu yd

Bag price ($)

Edit defaults — bulk delivery + bag pricing varies wildly by region.

You need

0 bags

0.5 cu ft each

Cubic yards

Cubic feet

Weight

0 t

Cost compare

Bulk $62

Bagged $308

Bulk saves $246 for this project.

Density assumption

Common landscape gravel averages ~2700 lb/yd³ (1.35 tons). Pea gravel is closer to 2800 lb/yd³; river rock varies with stone size.

Tip: For driveways, plan 4-6 inches base + 2-3 inches finishing layer. Compaction reduces volume ~10-15% — leave settling buffer on.

#57 stone (¾"-1")

Driveway base, drainage. Compacts well.

Pea gravel (¼"-½")

Walking paths, dog runs. Soft underfoot, migrates.

River rock (1"-3")

Decorative beds, dry creek beds. Doesn't compact.

Crushed limestone

Driveways, parking pads. Compacts to a hard surface.

#2 stone (1.5"-2.5")

Heavy-duty drainage, riprap. Won't compact.

Decomposed granite

Pathways, patios. Compacts hard, drainage poor.