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Board foot to Cubic foot Converter

1 board foot is about 0.08333333333 cubic feet. Convert board feet (FBM) to cubic feet (ft³) below: type a value and the result updates as you type.

FBM to ft³ calculator

Dot or comma decimals and scientific notation (1e-3) work.

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Result

Board foot to Cubic foot conversion

1 FBM ≈ 0.08333333333 ft³one board foot in cubic feet

1 ft³ = 12 FBMone cubic foot in board feet

Board foot (FBM): A board one foot long, one foot wide and one inch thick: exactly 144 cubic inches. Used to sell lumber in North America.

Cubic foot (ft³): A cube one foot on each side.

Source:Board foot: NIST Special Publication 811 (2008), Appendix B.8; Cubic foot: International yard and pound agreement (1959)

How to convert board feet to cubic feet

To convert board feet to cubic feet, divide the number of board feet by 12.

Formula

ft³ = FBM ÷ 12

Examples

  • 5 FBM = 5 ÷ 12 ≈ 0.4166666667 ft³
  • 25 FBM = 25 ÷ 12 ≈ 2.083333333 ft³
  • 100 FBM = 100 ÷ 12 ≈ 8.333333333 ft³

Board foot to Cubic foot conversion table

Board foot to Cubic foot
Board foot (FBM)Cubic foot (ft³)
0.1 FBM0.008333333333 ft³
0.5 FBM0.04166666667 ft³
1 FBM0.08333333333 ft³
2 FBM0.1666666667 ft³
3 FBM0.25 ft³
5 FBM0.4166666667 ft³
10 FBM0.8333333333 ft³
20 FBM1.666666667 ft³
25 FBM2.083333333 ft³
50 FBM4.166666667 ft³
100 FBM8.333333333 ft³
250 FBM20.83333333 ft³
500 FBM41.66666667 ft³
1000 FBM83.33333333 ft³

Values rounded to 10 significant digits where needed.

Frequently asked questions

How many cubic feet are in one board foot?
One board foot is about 0.08333333333 cubic feet.
How do I convert cubic feet to board feet?
To convert cubic feet to board feet, multiply the number of cubic feet by 12. The formula is FBM = ft³ × 12.
Is this conversion exact?
Yes. Both units have exact definitions and the factor 12 is exact. Displayed results are only rounded when they have many decimal places.
Which is larger, a board foot or a cubic foot?
A cubic foot is 12 times larger than a board foot. In other words, a board foot is exactly 1/12 of a cubic foot.