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Gravel Calculator

Volume and tonnage of gravel for a project.

Compute the volume of gravel needed to fill a rectangular area to a chosen depth, plus the approximate weight in tonnes.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

m
m
m
t/m³

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Volume = L × W × depth. Mass ≈ volume × bulk density (~1.6 t/m³ typical).

In depth

Compute the volume of gravel needed to fill a rectangular area to a chosen depth, plus the approximate weight in tonnes.