CalcCommons
Construction & Measurement

Gravel Calculator

Estimate gravel volume and approximate weight from dimensions, density, and waste allowance.

01 · Set it up

Your inputs

Choose a quick value or enter your own. Example inputs are filled in to get you started.

The main volume result uses this unit cubed. Other unit conversions are also shown.
Depth is converted separately. The volume result follows Length unit.
Adjustable approximate loose density. Examples: lighter aggregate 90; general estimate 100; denser aggregate 110. Verify with supplier.
02 · A little clarityEXAMPLE RESULT

Enter your measurements and calculate.

Calculated in your browser. Shared links include your entered values; only share information you intend to make public.

How to use

Measure length, width, and finished depth, then select their units. Use an approximate density preset or type your supplier’s density in pounds per cubic foot. Add the desired waste allowance and calculate volume and approximate weight.

For related tasks, try the Cubic Yard Calculator.

Formula & how it works

Volume = length × width × depth × (1 + waste/100). Pounds = cubic feet × density in lb/ft³. US short tons = pounds/2,000.

Length20 ftWidth10 ftDepth4 in
Example inputs · prism. Schematic, not to scale.
Gravel bed with length, width, and layer depth.

Worked example

Example 1

A 20 ft × 10 ft bed at 4 in depth needs 66.6667 ft³ = 2.4691 yd³ before waste. At 100 lb/ft³, that is about 6,666.67 lb or 3.3333 US tons.

Assumptions & practical notes

The default 100 lb/ft³ is a configurable planning estimate, not a measured material property. Moisture, particle size, and compaction change density.

Order by your supplier’s unit. This tool uses US short tons, not metric tonnes or long tons. Confirm whether quoted volume is loose or compacted.

See our calculation methodology for unit definitions and testing practices.

Results are estimates for planning purposes. Verify measurements, product specifications, and applicable building codes before purchasing materials or starting work.

Frequently asked questions

Can volume alone tell me the weight?

No. You also need bulk density for the material in its delivered condition.

Does waste account for compaction?

Not automatically. Ask your supplier how compaction changes the quantity needed for your desired finished depth.

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