Woodworking calculator
Board Foot Calculator
Convert lumber dimensions and quantity into board feet.
Your measurements
Estimated result
Board feet4 bd ft
Per board4 bd ft
Planning estimate only. Check product specifications, site conditions and local codes before ordering or building.
Board foot formula
Board feet = thickness (in) × width (in) × length (ft) ÷ 12 × quantity.
Planning notes
A board foot is a volume measurement equal to 144 cubic inches. Hardwood is commonly priced by board foot; verify whether your supplier uses nominal or surfaced dimensions when comparing quantities and prices.
- Board foot volume is based on nominal dimensions.
- One board foot equals 144 cubic inches.
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