Gravel calculator

Estimate cubic yards and tons from your measurements.

Project measurements

Decimals and fractions (e.g. 2 1/2) accepted.

Example measurements — replace with your own.

Default layer depth

Used when an area depth is blank.
Depth basis
View estimate
Density, allowance & compaction settings

Allowance is applied once, after any supplier compaction factor.

Calibrate weight

Density estimate: The prefilled 1.4–1.7 short tons/yd³ is a planning example. Use your supplier’s loose bulk density for the gravel you will buy.

Compare bulk & bag prices

Blank means unknown; $0 is valid. Totals include entered delivery only; taxes, labor, and site work are not included.

Bulk delivery

Add a price and delivery charge to compare this quote.

Bagged material

Add bag size, price, and delivery to compare this quote.

How the gravel estimate works

Measure each area, choose a layer depth, and add the volumes together. Use separate calculations for different materials or layers.

Volume = area × depth (use matching units)

For a compacted finished depth, enter your supplier’s compaction factor. Any extra allowance is added once. Weight depends on the gravel’s loose bulk density, so tons and weight-based prices may be a range.

Example: 20 ft × 10 ft × 3 in deep = 50 ft³ ≈ 1.85 yd³, before allowance or order rounding. See formulas and assumptions.

Practical planning guides

Cubic yards to tons

Why conversion needs the density of the product you will actually buy.

Pea gravel projects

Measure paths, patios, borders, and irregular layouts without losing areas.

Gravel driveway planning

Separate geometry, finished depth, compaction, and supplier ordering rules.