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Gravel Calculator

Gravel volume & weight

Frequently Asked Questions

How much gravel do I need?
Volume in cubic feet = length × width × (depth ÷ 12). We convert to cubic metres and multiply by about 1.5 tonnes/m³ to estimate the weight. Local density varies, so treat the tonnage as a guide.


Calculate the volume and tonnes of gravel needed, with CFT for local ordering.