Free Cubic Feet to Board Feet Converter
Enter values in either field to convert instantly.
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Volume Conversion Tool
Cubic Feet to Board Feet Calculator
Instantly convert cubic foot measurements to board feet — the standard unit for lumber pricing at sawmills and hardwood dealers.
How Cubic Feet Relate to Board Feet
A cubic foot is a 12 × 12 × 12 inch cube. A board foot is a 12 × 12 × 1 inch slab. Exactly 12 board-foot slabs stack up to fill one cubic foot.
Interactive Volume Comparison
Enter a value above — the bars update in real time.
How to Convert Cubic Feet to Board Feet
1
Measure Volume
Determine the total volume of your lumber stack or log in cubic feet.
2
Multiply by 12
Apply the conversion: Board Feet = Cubic Feet × 12.
3
Get Your Result
The result is the equivalent board footage for pricing and ordering.
Conversion Examples
| Cubic Feet | Board Feet | Use Case |
|---|---|---|
| 1 | 12 BF | Small project |
| 10 | 120 BF | Furniture build |
| 25 | 300 BF | Deck framing |
| 50 | 600 BF | Large construction |
| 100 | 1,200 BF | Commercial order |
💡 Sawmills often quote log volume in cubic feet. Multiply by 12 to compare with board foot pricing.
Frequently Asked Questions
How many board feet in 1 cubic foot?
Exactly 12 board feet. One cubic foot = 1,728 cubic inches. One board foot = 144 cubic inches. 1,728 ÷ 144 = 12.
When should I use cubic feet instead of board feet?
Cubic feet are common for firewood, gravel, and international timber trade. Board feet are the North American standard for pricing hardwood and softwood lumber.
How do sawmills measure lumber in cubic feet?
Some sawmills use cubic feet for log scaling or export shipments. They convert to board feet for domestic pricing by multiplying by 12.
What is the formula for cubic feet to board feet?
Board Feet = Cubic Feet × 12. This conversion factor comes from the ratio of 1,728 cubic inches (1 ft³) to 144 cubic inches (1 BF).
Can I convert board feet back to cubic feet?
Yes — Cubic Feet = Board Feet ÷ 12. For example, 600 board feet ÷ 12 = 50 cubic feet.
Is this conversion exact?
Yes, mathematically exact. The 12:1 ratio is a fixed unit conversion, not an approximation.
Related Calculators
Board Foot Calculator
Calculate board feet from dimensions.
Square Feet to Board Feet
Area × thickness = board feet.
Board Feet to Cost
Estimate total lumber cost.
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