M PLUS 1
M PLUS 1 is a sans serif font in 9 weights, also available as a variable font. Its lowercase letters are 5% wider than the typical sans serif font. Last updated 13 May 2026.
Editing a PDF that uses M PLUS 1
Most PDFs embed only the letters they already use. Type a new letter and many editors either refuse or swap in a different font. MythosPDF recognises M PLUS 1 from the widths stored in your PDF, loads the complete open font, and sets your new text in M PLUS 1 itself. The rest of the page is carried over untouched.
Measured metrics
| Average lowercase letter width | 542.8 units per 1000 em |
|---|---|
| Average capital letter width | 697.3 units per 1000 em |
| Word space | 287 units per 1000 em |
| Digits | proportional (digit widths differ) |
| Spacing | proportional |
| Width of i compared with m | 32% |
| Printable ASCII characters covered | 94 of 94 |
| Category | Sans serif |
Weights and styles
Languages beyond basic Latin
Open fonts closest to M PLUS 1
Measured on every printable character both fonts contain. A smaller difference means the same words take the same space, so lines break in the same places.
- M PLUS 2 Regularnearly identical widths (1 units)
- M PLUS 1p Regularsimilar widths (28.5 units)
- M PLUS Rounded 1c Regularloosely similar widths (32.5 units)
- Zalando Sans Regularloosely similar widths (33.4 units)
- TikTok Sans Regularloosely similar widths (34.4 units)
- M PLUS U Regularloosely similar widths (34.7 units)
- Inter Regularloosely similar widths (38.7 units)
- Adwaita Sans Regularloosely similar widths (38.8 units)
Compare M PLUS 1
Questions people ask
+Can I edit a PDF that uses M PLUS 1?
Yes. Drop the PDF into MythosPDF and click the text. New letters are set in M PLUS 1 itself, loaded from the open font, so the edit matches the rest of the page.
+Is M PLUS 1 free to use?
M PLUS 1 is released under the SIL Open Font License 1.1, an open licence that allows free use in documents, including commercial ones. Check the licence text for your exact use.
+Which font is closest to M PLUS 1?
By measured letter widths, M PLUS 2 is the closest match among open fonts (a mean difference of 1 units per 1000 em). Text set in one takes almost the same space in the other.
+Which languages does M PLUS 1 support?
It includes these character sets: Japanese, Latin, Central European, Vietnamese.
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