Font Size Unit Converter
字号换算pt转px字体单位排版
Convert across px, pt, em, rem and percent font sizes with print/screen pt-px relations and adjustable root size — for design implementation and typography specs, fully local.
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All processing is done locally in your browser. No data is uploaded.
How to Use
- Paste any valid JSON, supports nesting, arrays and escapes
- Click Beautify to auto indent and format
- Click Minify to remove whitespace into one line
- All operations run locally for privacy
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FAQ
Why does 12pt equal 16px?
Print defines 1pt = 1/72 inch while web uses 96dpi, so 12pt × (96/72) = 16px — Word's default body size.
Which unit should design specs use?
Photoshop/Sketch mark px, iOS uses pt, web prefers rem; convert freely among them here.
Will my data be uploaded?
No, all conversions run locally in your browser.