About this calculator

Board feet = thickness (in) × width (in) × length (ft) ÷ 12. A board foot is the standard volume unit for rough hardwood in North America.

Frequently asked questions

What does the Board Feet Calculator do?

Convert lumber dimensions to board feet for pricing hardwood. Board feet = thickness (in) × width (in) × length (ft) ÷ 12. A board foot is the standard volume unit for rough hardwood in North America.

Is the Board Feet Calculator free to use?

Yes. Every calculator on Calcurly.com is free, works in your browser without sign-up, and can be embedded on your own website.

How accurate is the Board Feet Calculator?

Results are calculated in real time using industry-standard formulas. Treat the output as a well-informed estimate — always cross-check with local regulations, product datasheets, or a qualified woodworking & joinery professional before committing to a purchase or a job.

What inputs does the Board Feet Calculator need?

Enter values for: Thickness (in), Width (in), Length (ft), Number of boards. Sensible defaults are pre-filled where possible so you can start with a single change.

Can I embed the Board Feet Calculator on my own website?

Yes — copy the iframe snippet at the bottom of this page, or use the Embed Generator to customise the size. The embedded version stays in sync with the live calculator on Calcurly.com.