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Subwoofer Enclosure Volume Calculator

Calculate internal cubic feet and liters for speaker box builds.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: Calculates internal speaker box volume after deducting enclosure wall material thickness.

How to use it (step by step)

  1. 1Fill in the boxes: “External Width (inches)”, “External Height (inches)”, “External Depth (inches)”, “MDF Wood Thickness (inches)”. Example numbers are already there so you can see how it works; replace them with yours.
  2. 2The result updates instantly as you type (on a phone it is below the boxes).
  3. 3The bold line is the main answer. Tap Copy next to any value to copy it.

Words to know

SWIFT / BIC
An 8 or 11-letter code that identifies a bank for international transfers.
Area / volume / perimeter
Perimeter = distance around a shape. Area = the flat space inside it (m²). Volume = the space inside a 3D object (m³).

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