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Gravel Calculator

Estimate the volume and weight of gravel needed for a path or driveway.

Inputs

Saved Scenarios

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Volume (m³)

1.50

Estimated Weight (tonnes)

2.40

Spark says

How it's calculated

Formula

Volume=Length×Width×DepthWeight≈Volume×1.6Volume = Length \times Width \times Depth \quad\quad Weight \approx Volume \times 1.6
1.6
— Typical gravel density in tonnes per m³

What is the Gravel Calculator?

This calculator finds the volume of gravel needed for a path, driveway or base layer, and estimates the weight using a typical gravel density.

How to use it

  1. 1 Enter the length and width of the area.
  2. 2 Enter the desired depth of gravel.

Worked examples

10m × 1.5m path, 10cm deep

1.5 m³, about 2.4 tonnes.

Try it

Limitations

  • •Actual gravel density varies by material type (crushed stone, pea gravel, etc.) — check your supplier's specific density for precise ordering.

Frequently asked questions

Why does gravel weight matter for ordering?

Many suppliers sell gravel by weight (tonnes) rather than volume — knowing the estimated weight helps you order the right quantity or estimate delivery costs.