Calculate a speaker box volume, port length and other parameters without getting confused in formulas.

To calculate interior volume, first convert all fractions to decimals (½ = .5) before entering the width, height, depth, or diameter, and thickness into any of our speaker box calculators below.

Calculate the volume of a rectangular box or tank using our free volume of a box calculator. Box volume calculator online that works in many different metrics: mm, cm, meters, km, inches, feet, yards, miles.

Select an enclosure type, choose a unit of measure and wood thickness, then input your dimensions. The Woofer BoxWizard will calculate how much internal air space is available for your woofer (s).

Free speaker box calculator for optimal subwoofer enclosure design. Calculate volume, port tuning & panel sizes. Get the best bass from your audio!

Jul 2, 2025 · With this calculator, you can design a box that matches your speaker's specs and delivers the performance you’re looking for. Try different setups, compare results, and bring your sound …

Easily calculate box volume, surface area, material requirements, and total costs with our free Box Calculator—fast, accurate, and user-friendly.