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Gravel Calculator

Estimate cubic yards, tons, compaction, waste, and cost from area, depth, and selectable material density.

Calculated and reviewed by HomeTaskKit Editorial Team ·
Quick answer

Gravel quantity starts with compacted volume, then converts cubic yards to tons using a selectable material density. Base condition, particle type, moisture, and compaction make supplier confirmation essential.

Your planning estimate5.7 yd³ / 7.99 tons

Uses 1.4 tons per cubic yard, 5% waste, and 10% compaction.

Measured need4.94 yd³ geometric volumeBuy / plan5.7 yd³ / 7.99 tons
Formula: length × width × depth ÷ 27 × waste × compaction × density
Shopping list
  • Gravel7.99 tons

Material density and supplier rounding vary. Confirm the product's tons-per-yard value before ordering.

Use it well

Step by step

  1. 1

    Measure each area and enter the compacted finished depth required by the project specification.

  2. 2

    Select the closest gravel type or enter the supplier’s tons-per-cubic-yard figure.

  3. 3

    Add compaction and waste once, then confirm delivery increments, truck access, and payload limits.

Worked example

Check the estimate before you buy

Estimate gravel in cubic yards and tons with editable depth, density, waste, compaction, and supplier price.

Example

A 40 × 10 ft driveway layer at 4 in deep is about 4.94 cubic yards geometrically. Waste and compaction raise the order before density converts volume to tons.

How the calculation works

The area is multiplied by depth and converted to cubic yards. Waste and compaction are applied separately; the selected tons-per-yard density produces weight.

Planning checklist

Before you place the order

  • Ask the supplier for the density of the exact aggregate.
  • Use compacted depth and account for the number of separate layers.
  • Confirm delivery access, truck load rounding, drainage, and base design.
Common questions

Gravel Calculator FAQ

Should I buy exactly the calculated amount of gravel?

Usually no. Cuts, spillage, breakage, uneven surfaces, batch matching, and package rounding can increase the order. Use the editable allowance and confirm the product label.

Why does the result round up?

Stores sell full bags, boxes, cans, rolls, panels, or pieces. The tool keeps the mathematical amount visible, then rounds the purchasing quantity up separately.

Why do tons vary for the same cubic yards?

Aggregate type, size, moisture, and void space change bulk density. The supplier's product-specific value is best.

Is gravel under concrete included?

No. Calculate the aggregate base as its own layer, then calculate the concrete slab separately.

Source & method

Reference: HomeTaskKit material-estimating method. Results are practical estimates; complete labels, package directions, product specifications, and qualified professional advice take priority.