Calculate Board Feet from Lumber Dimensions

Total Board Feet
0.00 BF
Board Feet per Piece
0.00 BF

This online calculator helps you quickly determine the volume of lumber in board feet (BF), a standard unit of measurement for wood. Enter the board's thickness and width in inches, its length in feet, and the total quantity to calculate the board footage for a single piece and for your entire stock.

The calculation is based on the standard industry formula:

Board Feet (per piece) = (Thickness (in) × Width (in) × Length (ft)) / 12

For example, let's calculate the board feet for one piece of lumber with the following dimensions:

  • Thickness: 1.5 in
  • Width: 5.5 in
  • Length: 8 ft

Calculation:

(1.5 × 5.5 × 8) / 12 = 66 / 12 = 5.5 BF

The volume for one such board is 5.5 board feet.