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Board Feet Calculator

Calculate lumber board feet from thickness, width, length, and quantity — with total cost, metric volume equivalents, a common-size reference chart, and a downloadable PDF report.

A board foot measures lumber volume: 1 BF = 144 cubic inches (a 1″ × 12″ × 12″ board). Enter nominal dimensions — for estimation only.

Board Details
1 Dimensions
in
in
ft
2 Quantity & Pricing
pcs
$/BF
Price per board foot is optional — leave blank to skip the cost estimate.
3 Display Options
digits
2
Calculation Results
Total Board Feet
Enter dimensions to begin
1 BF = 144 in³  •  = 12″ × 12″ × 1″  •  ≈ 2.36 L
Board Feet (Total)
Total Cost
Volume (ft³)
Full Breakdown
Board Feet / Piece
Board Feet (Total)
Linear Feet
Volume (in³)
Volume (ft³)
Volume (liters)
Volume (m³)
Total Cost
Board Feet by Standard Length
BF per piece at this cross-section
Common Lumber Board-Foot Reference
Nominal SizeBF per ft8 ft Board12 ft Board