How to Change The Font Size on an iPhone: 9 Steps (with Pictures)

The default apps on your iPhone, such as Calendar, Notes and Mail, as well as third-party apps compatible with Apple’s Accessibility features, can use larger fonts if required. Understandably, this is handy for those with less than perfect eyesight.
STEPS
METHOD 1 OF 2: USING IOS 7

1

TAP THE SETTINGS ICON ON YOUR HOMEPAGE.

2

TAP "GENERAL".

3

TAP "TEXT SIZE".

4

LOOK HALFWAY DOWN THE SCREEN, WHERE THERE IS A DRAGGING SLIDING BAR THAT ALLOWS YOU TO MANUALLY CUSTOMIZE AN IDEAL FONT SIZE. Simply drag the dot from right to left until the sample text above the sliding bar is of an optimal size.
METHOD 2 OF 2: USING IOS 6 AND BEFORE

1

TAP THE SETTINGS ICON ON YOUR IPHONE’S HOME SCREEN TO LAUNCH THE SETTINGS APP.

2

TAP GENERAL.

3

SCROLL DOWN AND TAP ACCESSIBILITY.

4

TAP LARGE TEXT.

5

TAP ON A FONT SIZE BETWEEN 20PT AND

5

6PT.
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VIDEO

TIPS
Try to avoid using the 56pt font if possible as it will often cause text in apps, especially Mail, to overlap and become unreadable.
WARNINGS
The font size will not be adjusted throughout your iPhone software when using this technique, only text within apps compatible with the Accessibility features of the iPhone.