Board Feet Table: Total board feet by Thickness
Reference table of total board feet for Board Feet across a range of thickness values — exact, engine-computed figures you can read off at a glance.
Board Feet Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Total board feet
4.00
- Board feet per board
- 4.00
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Board Feet Calculator
The Board Feet Calculator works out your total board feet, along with 1 related figure in an instant. Enter thickness, width and length and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the thickness.
- Enter the width.
- Enter the length.
- Enter the number of boards.
- Read off your total board feet, together with board feet per board — the calculator updates automatically, with no button to press.
Formula
The Board Feet Calculator uses the formula:
Total board feet = Thickness × Width × Length ÷ 12 × Number of boards
Worked example
For example, with thickness of 1 in, width of 6 in, length of 8 ft and number of boards of 1, the total board feet is 4.00.
| Thickness | 1 in |
|---|---|
| Width | 6 in |
| Length | 8 ft |
| Number of boards | 1 |
| Total board feet | 4.00 |
|---|---|
| Board feet per board | 4.00 |
Results are estimates for educational use, not professional advice.
Frequently asked questions
A board foot is a volume of lumber 1 inch thick, 12 inches wide and 1 foot long. It is the standard way to measure and price hardwood.
Multiply thickness (in) × width (in) × length (ft) and divide by 12. A 1 × 6 inch board, 8 ft long, is (1 × 6 × 8) ÷ 12 = 4 board feet.
Because thickness and width are in inches but length is in feet, dividing by 12 converts the mix of units into board feet.
Yes. Enter the number of identical boards and the calculator multiplies the per-board figure to give the total board feet.
Enter the thickness. Enter the width. Enter the length. Enter the number of boards. Read off your total board feet, together with board feet per board — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Board Feet: Formula, Steps & Examples
Learn how to calculate Board Feet — the formula explained step by step, with worked examples and a free calculator to check your answer.