Gravel Calculator

Gravel and crush are ordered by the tonne but spread by the foot, so a two-inch mistake doubles your bill. Enter the area and depth to get the volume in cubic feet and metres, the weight in tonnes, and the delivered cost.

Tonnes and volume of gravel or crush for any area and depth.

Area length (ft)

Area width (ft)

Depth (inches)

Density (tonnes per m³)

Price per tonne (PKR)

Gravel needed

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Volume (m³)

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Volume (cft)

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Estimated cost

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Enter valid values in every field to see your result. Check for blanks, text in number fields, or a combination that cannot be calculated (shown in the notes under How it works).

How it works

Volume = length × width × depth (converted from inches). Cubic metres = cubic feet ÷ 35.3147. Weight = volume × bulk density — loose gravel and crush typically run 1.4–1.7 tonnes per m³ (1.6 is a safe middle). If you are filling over soft ground, order an extra 10% for compaction into the soil. Delivery charges are usually per trip, not per tonne.

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Estimates only — not financial, tax, or professional advice. Figures depend entirely on the values you enter; confirm important decisions with a qualified professional.