Gravel Calculator
Calculate volume, weight, bags, and cost of gravel for driveways, paths, and landscaping. Supports feet and meters.
Project details
Updates as you typeShape & dimensions
Units ?
Area shape ?
Dimensions
Length
—
ft
Width
—
ft
Second leg length ?
—
ft
Second leg width
—
ft
Diameter ?
—
ft
Base ?
—
ft
Height (perpendicular)
—
ft
Depth
Common depths ?
Patio / path base
Custom depth
—
ft
Gravel type
Material ?
Angular, compacts well, best for drives & bases
Pricing
Display volume as
Price unit ?
Price
per ton
$
Add overage ?
Formula
V
=
A
×
D
,
W
=
V
×
ρ
- V
- Volume of gravel (ft³, yd³, or m³)
- A
- Coverage area — depends on shape (L·W, π·r², ½·b·h, or L-sum)
- D
- Depth (converted to the same unit as A)
- W
- Weight in tons (used for $/ton pricing and truckload counts)
- ρ
- Density — varies by material (pea 1.40, crushed 1.50, river 1.35, limestone 1.45 t/yd³)
Worked example — your numbers
- Coverage area (A) = —
- Depth (D) = —
- Volume = A × D = —
- Converted to cubic yards = —
- Weight = cu yd × density = —
- With overage (+10%) = —
- Cost = —
Densities assume dry, compacted material. Wet gravel weighs 5–15% more. Order an extra 5–15% for compaction, spillage, and uneven subgrade — gravel settles, and running short on a delivery day is expensive.
Material density reference
- Pea gravel
- ~1.40 tons per cubic yard — decorative, drainage
- Crushed stone
- ~1.50 tons per cubic yard — bases, driveways, paths
- River rock
- ~1.35 tons per cubic yard — landscape accents, dry creek beds
- Limestone
- ~1.45 tons per cubic yard — pale color, compacts hard