Gravel Weight Calculator
Calculate gravel weight from volume using material-specific bulk density. Toggle between kg and lbs. Covers pea gravel, crushed stone, road base, and more.
Part of the Landscaping & Site Work calculators — see all tools in this category.
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How it works and assumptions
This calculator converts gravel volume to weight using the bulk density of your selected aggregate material.
- Enter volume: The total volume of gravel in cubic meters (m³).
- Select material: Choose your aggregate type. Each material has a specific bulk density — from lightweight scoria (0.8 t/m³) to heavy road base (2.0 t/m³).
- Toggle weight unit: Switch between kg and lbs using the unit toggle. The metric tonne result is always shown as a secondary value.
Formula: Weight (tonnes) = Volume (m³) × Density (t/m³)
Example: 10 m³ of 20mm gravel (1.8 t/m³) = 18 tonnes = 18,000 kg = 39,683 lbs