Board Foot Calculator
Calculate board feet for rough or finished lumber, then turn your required dimensions into an efficient cutting plan.
Plan Your Lumber CutsBoard foot formula
For dimensions measured in inches, one board foot is 144 cubic inches. A common formula is:
Board feet = thickness × width × length ÷ 144
For metric lumber, convert dimensions to a consistent unit before calculating volume; board feet are an imperial volume measure.
From lumber volume to a cut plan
Board-foot calculations tell you how much wood is in the stock. They do not determine the best way to arrange your required cuts. Use the linear cutting optimizer when your main goal is to decide which lengths to cut from each board.