Board Foot Calculator

1 board foot = 144 in³ = 1/12 ft³. Formula: BF = (L × W × T) / 144 (all in inches).

Pieces
Enter how many identical pieces you’re calculating.
Price per board foot
Unit is per board foot.
Thickness
Width
Length
Total
Shows total board feet for all pieces (rounded to 2 decimals).
Total Cost
Uses “Price per board foot” × Total board feet.
Step-by-step derivation
Enter your dimensions to see the derivation…
References
  • Board foot definition: 1 BF = 144 in³ = 1/12 ft³.
  • Formula: BF = (Length × Width × Thickness) / 144 (all dimensions in inches).
  • Common practice: yards may price using nominal sizes.

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