Volume Lumber / in³ → MBF
Convert Cubic inches to Thousand board feet
Convert solid wood volume between board feet, cubic feet, and metric volume. Convert Cubic inches (in³) to Thousand board feet (MBF). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Thousand board feet to Cubic inches →
How to convert cubic inches to thousand board feet
A board foot is 1 square foot by 1 inch thick. Use actual dimensions for physical volume. Nominal lumber sizes, stacked cords, pallets, and ties need dimensions or packing assumptions and are excluded.
Use x for the value in in³, b for the intermediate value in m³, and y for the result in MBF.
MBF = in³ × 0.000016387064 ÷ 2.359737216
Worked examples
10 in³ ≈ 0.0000694444444444 MBF
Step 1: (10 × 0.000016387064) ≈ 0.00016387064 m³.
Step 2: 0.00016387064 ÷ 2.359737216 ≈ 0.0000694444444444 MBF.20 in³ ≈ 0.000138888888889 MBF
Step 1: (20 × 0.000016387064) ≈ 0.00032774128 m³.
Step 2: 0.00032774128 ÷ 2.359737216 ≈ 0.000138888888889 MBF.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Cubic inches
Cubic inches (in³) measures volume lumber under the conventions above. The base value in m³ is (x × 0.000016387064), where x is the numerical value in in³. Factors shown here are rounded for display; calculations use the stored factor.
About Thousand board feet
Thousand board feet (MBF) measures volume lumber under the conventions above. The base value in m³ is (x × 2.359737216), where x is the numerical value in MBF. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Keep these unit conventions consistent when using measurements in construction calculations.
Cubic inches to thousand board feet reference table
| Cubic inches (in³) | Thousand board feet (MBF) |
|---|---|
| 1 | 0.00000694444444444 |
| 5 | 0.0000347222222222 |
| 10 | 0.0000694444444444 |
| 25 | 0.000173611111111 |
| 50 | 0.000347222222222 |
| 100 | 0.000694444444444 |
| 1000 | 0.00694444444444 |
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