Gravel Driveway Calculator - Estimate Material for a ...
Calculate How Many Cubic Yards of Gravel You Need. Estimating gravel driveway materials is as simple as estimating the cubic yards of volume the driveway needs to be. Cubic yards are found by multiplying the length by the width by the depth in yards. Find the driveway's length and width in yards by dividing the measurement in feet by 3.