jarvisbox

页面边距计算器

输入页面尺寸与边距值,实时显示可打印区域的公厘与英吋数值。

100% client-side · no upload

Printable area

Width

×

Height

How to use

  1. Select a standard paper size or choose "Custom" and enter width and height.
  2. Enter your margin values in millimetres (top, bottom, left, right).
  3. The printable area updates instantly in both mm and inches.

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常见问题

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.

Last updated:

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