Construction
Board Feet Calculator
Calculate lumber volume in board feet from thickness, width, length, and quantity.
- Free to use
- Runs in your browser
- Level B · Industry formula
- Last reviewed 2026-08-16
How to use this calculator
Enter the requested values and select Calculate. The result is computed locally in your browser using the formula shown on this page.
Understanding the result
Estimate dimensional lumber volume using the standard board-foot formula.
Calculation method
Board Feet = Thickness (in) × Width (in) × Length (ft) ÷ 12 × Quantity.
Calculator guide
About the Board Feet Calculator
Estimate dimensional lumber volume using the standard board-foot formula.
What to keep in mind
- Enter thickness and width in inches and length in feet.
- One board foot equals 144 cubic inches.
- Actual purchasing dimensions and nominal lumber dimensions may differ.
Formula & methodology
Board Feet = Thickness (in) × Width (in) × Length (ft) ÷ 12 × Quantity
Review standard: Level B · Industry formula. How calculator reviews work.CalculateMeasure performs the arithmetic locally in your browser. The displayed result depends on the values and units you enter.
Frequently asked questions
What does this calculator calculate?
Estimate dimensional lumber volume using the standard board-foot formula.
Can I use the result for an important decision?
Use the result as a calculation aid and verify the inputs, assumptions, and applicable professional or regulatory requirements before relying on it for an important decision.
Does CalculateMeasure store the values I enter?
This calculator performs its arithmetic in your browser. The calculator itself does not need to send your entered values to a server to produce the result.