How to convert cubic feet to board feet
FBM = ft³ × 12Multiply the value in cubic feet by 12. To go the other way, multiply by 0.08333333333 (or divide by 12).
A cubic foot is larger than a board foot: one cubic foot contains 12 board feet.
Worked examples
- 1 cubic foot1 ft³ × 12 = 12 FBM
- 5 cubic feet5 ft³ × 12 = 60 FBM
- 10 cubic feet10 ft³ × 12 = 120 FBM
- 20 cubic feet20 ft³ × 12 = 240 FBM
- 100 cubic feet100 ft³ × 12 = 1,200 FBM
Cubic feet to board feet conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Cubic feet (ft³) | Board feet (FBM) |
|---|---|
| 0.1 ft³ | 1.2 FBM |
| 0.25 ft³ | 3 FBM |
| 0.5 ft³ | 6 FBM |
| 1 ft³ | 12 FBM |
| 2 ft³ | 24 FBM |
| 3 ft³ | 36 FBM |
| 4 ft³ | 48 FBM |
| 5 ft³ | 60 FBM |
| 6 ft³ | 72 FBM |
| 7 ft³ | 84 FBM |
| 8 ft³ | 96 FBM |
| 9 ft³ | 108 FBM |
| 10 ft³ | 120 FBM |
| Cubic feet (ft³) | Board feet (FBM) |
|---|---|
| 12 ft³ | 144 FBM |
| 15 ft³ | 180 FBM |
| 20 ft³ | 240 FBM |
| 25 ft³ | 300 FBM |
| 30 ft³ | 360 FBM |
| 40 ft³ | 480 FBM |
| 50 ft³ | 600 FBM |
| 75 ft³ | 900 FBM |
| 100 ft³ | 1,200 FBM |
| 250 ft³ | 3,000 FBM |
| 500 ft³ | 6,000 FBM |
| 1,000 ft³ | 12,000 FBM |
About the units
Cubic foot (ft³)
The cubic foot (ft³) is a unit of lumber volume in the US customary system. One cubic foot equals 0.02831684659 cubic meters (m³).
Board foot (FBM)
144 cubic inches (about 2.36 L). One board foot equals 0.002359737216 cubic meters (m³).
Frequently asked questions
How many board feet are in one cubic foot?
There are 12 board feet in one cubic foot, and this value is exact by definition.
How do I convert cubic feet to board feet?
Multiply the number of cubic feet by 12. For example, 10 ft³ × 12 = 120 FBM.
How many cubic feet are in one board foot?
One board foot equals 0.08333333333 cubic feet. That is the reverse factor, 1 ÷ 12.
What is 10 cubic feet in board feet?
10 ft³ = 120 FBM.
Is this ft³ to FBM converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.