How do you calculate board feet?

The formula for calculating board feet is: (Thickness in inches × Width in inches × Length in inches) ÷ 144. If your length is in feet, you would use: (Thickness in inches × Width in inches × Length in feet × 12) ÷ 144.

Why use a board foot calculator?

A board foot calculator helps woodworkers, contractors, and DIY enthusiasts quickly estimate lumber quantities and costs. It's essential for purchasing hardwood lumber, estimating project costs, and planning material requirements.

What is the 3D visualization feature?

Our 3D visualization feature allows you to see a real-time 3D model of your board that updates as you input dimensions. This helps you better understand the size and proportions of the lumber you're calculating. You can rotate, pan, and zoom the 3D model to view it from any angle.

Free Board Foot Calculator | Estimate Lumber & Costs

Board foot calculator

This board foot calculator helps woodworkers and carpenters quickly calculate board feet and estimate lumber costs. Enter your dimensions, specify units, and get instant results.

Current board foot results

Board feet:0.00

Current Cost:$0.00

Board Foot Formula

(Thickness × Width × Length × Quantity) ÷ 144 = Board Feet

What is a Board Foot?

A board foot is a unit of volume for measuring lumber in North America. One board foot equals a piece of wood measuring 1 inch thick by 12 inches wide by 12 inches long, or 144 cubic inches.

How to Use This Calculator

Enter the thickness and width of your lumber
Enter the length (in feet or inches)
Specify the quantity of pieces
Enter the price per board foot to calculate total cost
Click Add to Tally to track multiple lumber items

Common Applications

The board foot calculation is essential for:

Purchasing hardwood lumber for furniture making
Estimating costs for woodworking projects
Planning construction material requirements
Comparing lumber prices across different suppliers