Board Feet Calculator
Fill in the values and the answer updates as you type.
How the Board Feet Calculator works
Board feet = thickness (in) × width (in) × length (ft) ÷ 12 × number of boards. One board foot is a piece 1 in × 12 in × 12 in. Example: with Thickness 2 in, Width 6 in, and Length 8 ft, the result is Board feet = 80; Total cost = $280; Volume (cubic feet) = 6.67.
Inputs and results
The Board Feet Calculator takes 5 inputs and gives 3 results.
What you enter
- Thickness (in) — starts at 2.
- Width (in) — starts at 6.
- Length (ft) — starts at 8.
- Number of boards — starts at 10.
- Price per board foot ($) — starts at 3.5.
What you get
- Board feet
- Total cost
- Volume (cubic feet)
Example: Board Feet Calculator with the starting values
With thickness 2 in, width 6 in, length 8 ft, number of boards 10 and price per board foot 3.5 $, the calculator returns:
| Board feet | 80 |
|---|---|
| Total cost | $280 |
| Volume (cubic feet) | 6.67 |
Change any value above and the results update straight away.
Board Feet Calculator FAQ
How do I use the Board Feet Calculator?
Enter thickness, width, length and number of boards in the fields, then read board feet, total cost and volume (cubic feet) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Board Feet Calculator calculate?
Lumber volume in board feet and cost. It returns board feet, total cost and volume (cubic feet) from the 5 values you provide.
What values does the Board Feet Calculator start with?
It opens with thickness 2 in, width 6 in, length 8 ft and number of boards 10 so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Board Feet Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Board Feet Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.