# Board Foot Calculator

> Board foot calculator: convert lumber dimensions into board feet and total cost, multiple boards at once. Editable prices, free, runs in your browser.

- **Canonical URL:** https://boringtoolskit.com/board-foot-calculator/
- **Category:** Construction & Measurement
- **Evidence level:** authored-methodology
- **Reviewed:** July 26, 2026
- **Last verified:** 2026-10-12
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

## How it works

Board feet = thickness (in) x width (in) x length (ft) / 12, per piece, times quantity.

## Worked example

Ten pieces of 2 x 6 lumber, 8 ft long: 8 board feet each, 80 board feet total.

## Common questions

### What is a board foot calculator?

A board foot calculator is a tool that measures lumber volume in board feet by multiplying thickness, width, and length of a board. Our board foot calculator works entirely in your browser, no signup required.

### Do I need to create an account or install anything?

No. Our board foot calculator is free, no-signup, and runs directly in your browser with no downloads or installations needed.

### How accurate is the board foot calculator?

The board foot calculator uses the standard formula: (thickness in inches × width in inches × length in feet) ÷ 12. Results are precise as long as you enter accurate measurements.

## Sources

- [Calculation methodology](/methodology/)
- [Quality evidence and verification standard](/quality-evidence/)

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