Board Foot Calculator

Calculate board feet from lumber dimensions. Enter thickness, width, length, and quantity to determine total board footage for your woodworking project.

Inputs

Thickness

Width

Length

Quantity

Tab to move between fields

Results

Board Feet per Piece

4 BF

Total Board Feet

4 BF

Total Linear Feet8 ft

Total Cubic Feet0.33 cu ft

How to Use This Calculator

Enter Thickness, Width, and Length.
Set Quantity.
Review Board Feet per Piece (BF) and Total Board Feet (BF).
Use Total Linear Feet (ft) and Total Cubic Feet (cu ft) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Thickness

Thickness	Board Feet per Piece	Total Board Feet
1.83	7.32 BF	7.32 BF
5.76	23.04 BF	23.04 BF
10	40 BF	40 BF
14	56 BF	56 BF

What each input means

Thickness: Lumber thickness in inches (nominal or actual)
Width: Lumber width in inches
Length: Lumber length in feet
Quantity: Number of identical pieces

How this is calculated

Worked example, using the default values

Identify Input Parameters
4 parameters
Thickness = 1, Width = 6, Length = 8, Quantity = 1 = 4 input(s) provided
Calculate Board Feet per Piece
Board Feet per Piece
4 = 4
Calculate Total Board Feet
Total Board Feet
4 = 4
Calculate Total Linear Feet
8 = 8
Calculate Total Cubic Feet
Total Cubic Feet
0.333 = 0.333

Engine last updated July 22, 2026. Checked against 2 independently-derived tests — how we verify calculators.

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