Board Feet Calculator

About Board Feet Calculator

Estimate lumber board feet.

How to Use

Estimate lumber board feet. Enter the Thickness inches, Width inches, Length feet, and Quantity values and review the Board feet each and Total board feet outputs after you calculate.

  1. Open the calculator : Use Board Feet Calculator from the Construction category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What formula does the Board Feet Calculator use?

board feet = thickness*width*length/12.

Inputs

  • Thickness inches
  • Width inches
  • Length feet
  • Quantity

Outputs

  • Board feet each
  • Total board feet

Formula

board feet = thickness*width*length/12