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Q:

# How do I calculate how much gravel I need?

A:

To calculate how much gravel is needed, measure the width and breadth of the area in feet, and determine the depth desired. Multiply the length times the width times the depth for the number of cubic feet, then divide that number by 27 to determine the needed cubic yards.

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The measure of volume used for gravel is a cubic yard. To determine depth, usually measured in inches, use a fraction of one foot in the calculation. DoItYourself.com uses this example: if the area is 36 feet long, 9 feet wide and 3 inches deep, use .25 (1/4 of 1 foot) for the depth. The formula is 36 x 9 x .25 = 81 cubic feet of gravel. To determine how many cubic yards are needed for the job, divide 81 by 27, which is the number of cubic feet in a yard, to arrive at 3 cubic yards for the project.

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## Related Questions

• A:

According to the Lester Carpet Company, running feet of carpet is calculated by selecting which direction the carpet will be unrolled during installation and measuring how many rolls will fit into a room in that direction. The length of the room in the direction of the unrolling is called the "run," which can be measured in feet.

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• A:

To convert feet to square feet for a rectangular area, find the length of the area you are measuring, and multiply it by the width of the area. A square foot is a measurement unit equal to a square that measures one foot on each side.

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• A:

Convert square feet into yards by multiplying the length of a space by the width of the space to calculate the area of the space. Divide the sum by 9 to arrive at the square yardage of the space.