Convert Cubic Foot to Board Foot
Convert cubic feet to board feet instantly. 1 cubic foot = 12 board foot — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Board Foot to Cubic Foot converter for the reverse conversion.
Units explained
Cubic Foot
A cubic foot is the volume of a cube one foot on a side (28.3168 L).
Derived by cubing the international foot (0.3048 m).
Used for natural gas, refrigerators, shipping and HVAC.
1959 yard agreement.
Board Foot
A board foot is 144 cubic inches (2.35974 L), nominally 1 ft × 1 ft × 1 in of lumber.
A traditional measure of sawn-timber volume.
Standard for pricing hardwood lumber in North America.
North American lumber trade.
Cubic Foot to Board Foot conversion formula
The relationship between cubic feet and board feet:
To convert cubic feet to board feet, multiply the value in cubic feet by 12. To reverse, multiply board feet by 0.0833333333.
How to use this converter
Type a value into the calculator. The result in board feet updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Board Foot to Cubic Foot converter for the reverse direction.
Step-by-step: convert cubic feet to board feet
- Write down the value in cubic feet (ft³).
- Multiply that value by the factor 12.
- The product is the equivalent value in board feet (bf).
- To reverse, multiply the board foot value by 0.0833333333.
Worked examples
Example 1 — Convert 1 ft³ to bf:
1 × 12 = 12 bf
Example 2 — Convert 100 ft³ to bf:
100 × 12 = 1200 bf
Real-world example — Ruler-scale measurements
A 30-cubic foot school ruler converts cleanly to board feet — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 ft³ × 12 = 360 bf
Real-world example — Hardware-scale dimensions
A 10-cubic foot fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between cubic feet and board feet daily when mixing metric and imperial tools.
10 ft³ × 12 = 120 bf
Real-world example — Postcard and small-object dimensions
A postcard is about 5 cubic feet wide. Converting to board feet is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 ft³ × 12 = 60 bf
Cubic Foot to Board Foot conversion table
Standard reference values for converting cubic feet to board feet:
| Cubic Foot [ft³] | Board Foot [bf] |
|---|---|
| 0.01 | 0.12 |
| 0.1 | 1.2 |
| 1 | 12 |
| 2 | 24 |
| 3 | 36 |
| 4 | 48 |
| 5 | 60 |
| 10 | 120 |
| 20 | 240 |
| 30 | 360 |
| 40 | 480 |
| 50 | 600 |
| 100 | 1200 |
| 500 | 6000 |
| 1000 | 12000 |
Frequently asked questions
How many board feet is 1 cubic foot?
How do I convert cubic feet to board feet?
How do I convert board feet back to cubic feet?
How many board feet is 100 cubic feet?
Popular volume unit conversions
Convert Cubic Foot to other volume units
Show all Cubic Foot conversions
Metric / SI (15 units)
US Customary (Liquid) (15 units)
US Customary (Dry) (5 units)
Imperial (UK) (14 units)
Cubic (length-derived) (3 units)
Cooking / Culinary (5 units)
Sources & references
Conversion factor (1 ft³ = 12 bf) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.