Board Foot Calculator

Calculate board feet, estimate lumber costs, and plan your woodworking projects. Perfect for carpenters, woodworkers, and DIY enthusiasts.

How to Use Board Foot Calculator

Step 1: Enter Board Dimensions

Input the length, width, and thickness of your lumber in inches. The calculator will automatically convert these measurements to board feet.

Step 2: Specify Quantity

Enter the number of boards you need. This helps calculate the total board feet and cost for your entire project.

Step 3: Calculate Cost (Optional)

If you know the price per board foot, enter it to estimate the total cost of your lumber purchase.

Frequently Asked Questions

What is a board foot?

A board foot is a unit of measurement for lumber volume. One board foot equals 144 cubic inches, or a piece of wood that is 1 foot long, 1 foot wide, and 1 inch thick.

How do you calculate board feet?

Board feet = (Length × Width × Thickness) ÷ 144, where all measurements are in inches. For example, a 2×4 that is 8 feet long equals 5.33 board feet.

Why use board feet instead of linear feet?

Board feet account for both the length and cross-sectional area of lumber, making it a more accurate way to measure and price wood. It ensures you're paying for the actual volume of wood you're purchasing.

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