jarvisbox

房間面積計算機

計算矩形或 L 型房間的地板、牆面與天花板面積。

How to use

  1. Enter the room's length and width in feet (measure to the interior walls).
  2. Enter the ceiling height — standard homes are 8 ft, some have 9 ft or higher.
  3. Results show floor, wall, and ceiling area plus total surface area.

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常見問題

Is this tool free?
Yes, completely free with no signup required.
Does my data leave my device?
No. All calculations happen in your browser — nothing is sent to a server.
Does it work on mobile?
Yes. The tool is mobile-first and works on any modern browser.

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