Board Feet Calculator
Calculate board feet for any lumber order. Board feet (BF) is the standard unit for measuring hardwood lumber volume. Enter your board dimensions and quantity below to get total board feet and an optional cost estimate.
Enter Lumber Dimensions
Full Breakdown
Board Dimensions
Quantity
BF per Piece
Total Board Feet
How to Use This Calculator
- Enter the board thickness in inches (e.g., 1 for 4/4 lumber, 2 for 8/4).
- Enter the board width in inches and length in feet.
- Set the quantity of boards you're ordering.
- Optionally enter a price per board foot for a cost estimate.
- Click "Calculate Board Feet" for instant results.
The Formula
Board Feet = (Thickness" × Width" × Length') ÷ 12
One board foot equals a piece of wood 1 inch thick, 12 inches wide, and 1 foot long (144 cubic inches). Multiply BF per piece by quantity for total board feet.