How Do You Calculate the Amount of Gravel for a Driveway?

De Agostini / G. Dagli Orti/De Agostini Picture Library/Getty Images

Calculate the amount of gravel needed for a driveway by multiplying the length of the driveway by the width and then by the desired depth of gravel. Divide the result by 27 to determine the required amount of gravel in cubic yards.

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