Free Board Foot Calculator

Instantly calculate the total board feet (BF) of your lumber. Simply enter the thickness, width, length, and quantity to get precise wood volume for your projects.

Tip: You can combine feet and inches (e.g., 8 ft and 6 in) or use just one unit.

More calculators coming soon.

Board Foot Formula & How to Calculate

To calculate board feet, use the standard formula: (Thickness × Width × Length) ÷ 144 when all dimensions are in inches. If length is in feet, use: (Thickness × Width × Length) ÷ 12.

Simply input your dimensions into the fields above. This tool handles the conversion between feet and inches automatically, ensuring you get an accurate board foot measurement for pricing or inventory.

Frequently Asked Questions about Board Feet