How to change the font size on your iPhone

You can make text easier to read on your iPhone screen by increasing the size.

Close-up of a mobile phone in the hands of an older woman | Getty/ilona titova

Image credit: Saga

By John McCann | Published - 21 Dec 2022 | Updated - 10 Jul 2024

You can easily make the words on your iPhone screen bigger or smaller...

1: Head to Settings

Unlock your iPhone and tap on the Settings app - it's the grey icon with a picture of a cog.

2: Navigate to 'Large Text'

Scroll down and tap ‘Accessibility’, then ‘Display & Text Size’, then 'Large Text’

3: Adjust the size

Place your finger over the font size adjustment slide at the base of the screen.

Moving your finger to the right will make the text bigger, while moving to the left will make things smaller.

4: Go bigger

If the largest font size isn’t suitable for your needs, you can unlock even bigger sizes by tapping the Larger Accessibility Sizes toggle at the top of the page.

This will extend the length of the slider below, allowing you to increase the text further.

Screenshot of how to change the font on an iPhone — Image credit: Saga

While adjusting the font size will give you the desired reading results in apps such as Messages and Safari, not all apps support variable sizes, so text may remain the same in some of your applications. The larger you make the text, the fewer words will be able to fit on screen, which will result in more scrolling.

In some apps, very large text may impact the formatting, so don't be alarmed if things look a little different.

If you’re using an iPhone with a smaller screen – such as the iPhone 6S, iPhone 7 or iPhone SE, you’ll find there’s much less text shown on the display at a time – so you may want to warm up your scrolling thumb!