Volume - Lumber Converter
Lumber volume uses units suited to sawn timber. A board foot is the volume of a board 1 foot long, 1 foot wide and 1 inch thick — 144 cubic inches. A cord, used for firewood, is a stacked pile 4 × 4 × 8 feet, or 128 cubic feet.
1 Board Foot (fbm) = 0.08333333333 Cubic Foot
How to convert Board Foot (fbm) to Cubic Foot
One Board Foot (fbm) equals 0.08333333333 Cubic Foot, so multiply any value in fbm by 0.08333333333 to get ft³. To convert back, divide by 0.08333333333 — or multiply by 12.
ft³ = fbm × 0.08333333333
Example: 25 fbm × 0.08333333333 = 2.083333333 ft³.
Watch out: Board feet are calculated from nominal dimensions, which are usually larger than the actual finished size of dressed lumber.
Board Foot (fbm) to Cubic Foot table
| Board Foot (fbm) (fbm) | Cubic Foot (ft³) |
|---|---|
| 1 | 0.08333333333 |
| 2 | 0.1666666667 |
| 3 | 0.25 |
| 4 | 0.3333333333 |
| 5 | 0.4166666667 |
| 10 | 0.8333333333 |
| 15 | 1.25 |
| 20 | 1.666666667 |
| 25 | 2.083333333 |
| 50 | 4.166666667 |
| 75 | 6.25 |
| 100 | 8.333333333 |
| 250 | 20.83333333 |
| 500 | 41.66666667 |
| 1,000 | 83.33333333 |
Cubic Foot to Board Foot (fbm) table
| Cubic Foot (ft³) | Board Foot (fbm) (fbm) |
|---|---|
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 10 | 120 |
| 15 | 180 |
| 20 | 240 |
| 25 | 300 |
| 50 | 600 |
| 75 | 900 |
| 100 | 1,200 |
| 250 | 3,000 |
| 500 | 6,000 |
| 1,000 | 12,000 |
Volume - Lumber units at a glance
All 11 units this converter supports, each expressed in Board Foot (fbm) (fbm) and the other way round.
| Unit | Symbol | 1 unit in fbm | 1 fbm in unit |
|---|---|---|---|
| Board Foot (fbm) | fbm | 1 | 1 |
| Thousand Board Feet (MBF) | MBF | 1,000 | 0.001 |
| Cubic Inch | in³ | 0.006944444444 | 144 |
| Cubic Foot | ft³ | 12 | 0.08333333333 |
| Cubic Meter | m³ | 423.7760007 | 0.002359737216 |
| Cubic Centimeter | cm³ | 0.0004237760007 | 2,359.737216 |
| Liter | L | 0.4237760007 | 2.359737216 |
| Cord (128 ft³) | cord | 1,536 | 0.0006510416667 |
| Cord Foot (16 ft³) | cord ft | 192 | 0.005208333333 |
| Cross Tie (42 ft³) | crosstie | 504 | 0.001984126984 |
| Pallet Standard (40 ft³) | pallet | 480 | 0.002083333333 |
Where volume - lumber conversions are used
Buying and pricing hardwood, estimating timber for construction, and selling firewood.
Frequently asked questions
What is 1 Board Foot (fbm) in Cubic Foot?
1 Board Foot (fbm) (fbm) is 0.08333333333 Cubic Foot (ft³).
What is 1 Cubic Foot in Board Foot (fbm)?
1 Cubic Foot (ft³) is 12 Board Foot (fbm) (fbm).
How do I convert Board Foot (fbm) to Cubic Foot?
Multiply the value in Board Foot (fbm) by 0.08333333333. For example, 5 fbm × 0.08333333333 = 0.4166666667 ft³. To go the other way, divide by 0.08333333333.
How many units does the volume - lumber converter support?
It converts between 11 units: Board Foot (fbm), Thousand Board Feet (MBF), Cubic Inch, Cubic Foot, Cubic Meter, Cubic Centimeter, Liter, Cord (128 ft³), Cord Foot (16 ft³), Cross Tie (42 ft³), Pallet Standard (40 ft³).
What should I watch out for when converting volume - lumber?
Board feet are calculated from nominal dimensions, which are usually larger than the actual finished size of dressed lumber.
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Figures on this page are calculated with the same conversion factors as the converter above and shown to up to 10 significant figures. See our disclaimer before relying on a result in a professional or safety-critical context.