Struggling to read an email on an iPhone because the font’s size is microscopically minuscule? Tired of constantly zooming in and squinting to make out text? Find out here how to change the email font size in iPhone Mail ⤓ for reading and composing messages.
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How to Change the Font Size in iPhone Mail
Time needed: 2 minutes
To change the (displayed) font size for reading and writing messages in iOS Mail for iPhone:
- Open the Settings app on the iPhone (or iPad).
- Go to the Accessibility category.
- Choose Display & Text Size.
- Now select Larger Text.
- Use the slider at the bottom to make text
Even bigger: To increase the font size even further, turn on Larger Accessibility Sizes, then use the slider’s right side.
Their word: Apple include information on font size in iPhone User Guide.
Font size now to your liking?
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Zoom in to View Parts Larger
You can also enlarge any part of an email as is, of course:
- Position two fingers on the part you want to enlarge.
- Spread the two fingers on the screen to zoom.
How to Change the Font Size in iPhone Mail: FAQ
Can I change the font size for the recipient?
No.
iPhone Mail always sends messages text without font size information, both in plain text and using formatting (such as bold text or italics). The recipient can enlarge the font size for viewing on their device, of course, or zoom in.
(Tested with iOS Mail 17–18 and 26; first published February 2024, last updated July 2026)