Lumber Calculator
Result
Lumber Calculator — free online calculator.
Formula
- Estimate lumber volume, board feet and optional material cost. Enter all dimensions in meters. Cost uses the same currency unit as the price input; 0 price produces a zero estimate.
- The main inputs are Number of Pieces, Length per Piece, Width, Thickness, Price per Board Foot. Enter them in the units and format shown in the calculator.
- Keep measurements and project assumptions consistent before comparing or combining values.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Lumber
- Number of Pieces: 10
- Length per Piece: 3
- Width: 0.1
- Thickness: 0.05
- Price per Board Foot: 0 optional
10 pieces × 3 m × 0.1 m × 0.05 m = 0.15 m³ ≈ 63.5664 board feet; at 5 per board foot, estimated cost ≈ 317.832.
Sample result: Calculating…
Frequently asked questions
What does the Lumber calculate?
Lumber Calculator — free online calculator.
Which values should I enter?
Enter Number of Pieces, Length per Piece, Width, Thickness, Price per Board Foot using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Volume (m³) = pieces × length (m) × width (m) × thickness (m); board feet = volume (m³) × 423.776; estimated cost = board feet × price per board foot..
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.