How to Change The Font Size on an iPhone: A Step-by-Step Guide

Changing the font size on an iPhone is a straightforward process that can be accomplished in a few easy steps. By accessing the “Display & Brightness” settings on your iPhone, you can adjust the text size to your preference, making it easier to read or giving your device a fresh look.

After adjusting the font size, you’ll notice the changes immediately across various apps and system settings. Larger text can improve readability, while smaller text allows for more content on the screen.


When it comes to personalizing your iPhone, one of the simplest changes you can make is adjusting the font size. Whether you’re someone who struggles with small text or you just want to give your phone a different appearance, changing the font size can make a significant difference in your user experience.

The ability to change font size is especially important for those with visual impairments or for older users who may find the default text size too challenging to read. It’s also a useful tweak for avid readers or anyone who uses their iPhone for long periods and wants to reduce eye strain.

In this article, we’ll walk you through the process of changing the font size on your iPhone, discuss the benefits and drawbacks of doing so, and provide some additional tips to enhance your iPhone usage. So, let’s get started and dive into the world of iPhone customization!

Step by Step Tutorial to Change the Font Size on an iPhone

The following steps will guide you through the process of changing the font size on your iPhone, allowing you to customize the text display to your liking.

Step 1: Open Settings

Navigate to the Settings app on your iPhone.

In the Settings app, you’ll find a myriad of options to customize your iPhone. For changing the font size, we’ll focus on the “Display & Brightness” section.

Step 2: Select Display & Brightness

Scroll down and tap on “Display & Brightness.”

This section contains settings that affect the visual aspects of your iPhone, including brightness, text size, and bold text options.

Step 3: Tap on Text Size

In the “Display & Brightness” section, find and select “Text Size.”

This will take you to a new screen where you can adjust the font size slider.

Step 4: Adjust the Font Size Slider

Move the slider to the left or right to decrease or increase the font size.

As you adjust the slider, you’ll see a preview of the text size at the top of the screen. This helps you find the perfect size for your needs.


Improved ReadabilityLarger text can significantly improve readability, especially for those with vision impairments, making it easier and more comfortable to use your iPhone.
CustomizationAdjusting the font size allows you to personalize your device to match your style and preferences, giving you a more tailored user experience.
Reduced Eye StrainBy choosing an optimal font size, you can reduce eye strain during extended periods of use, which is beneficial for your overall eye health.


Limited Screen Real EstateIncreasing the font size can lead to less content being displayed on the screen, requiring more scrolling and potentially impacting the layout of some apps.
Inconsistency Across AppsNot all apps may support the changed font size, leading to an inconsistent experience across different applications.
Potential Layout IssuesSome apps may not handle larger text well, resulting in overlapping elements or cut-off text, which can hinder usability.

Additional Information

While changing the font size on an iPhone is quite simple, there are a few extra tips that can enhance your experience. For instance, if you find that adjusting the font size isn’t enough, you can also turn on the “Bold Text” option in the “Display & Brightness” settings for added emphasis.

Additionally, if you’re someone who uses your iPhone at night or in low-light conditions, consider enabling the “Night Shift” feature, which adjusts the colors of your display to the warmer end of the spectrum, reducing blue light and making it easier on your eyes.

Another useful feature is the “Display Zoom” setting, which not only increases the size of text but also scales up icons and other interface elements, making everything easier to see and tap.

Remember, while changing the font size on an iPhone is a great way to customize your device, it’s essential to find a balance that works for you without compromising the functionality of your apps or the overall aesthetic of your device.


  1. Open Settings
  2. Select Display & Brightness
  3. Tap on Text Size
  4. Adjust the Font Size Slider

Frequently Asked Questions

Will changing the font size affect all apps?

Most native and many third-party apps will respect the new font size setting, but some apps may not be optimized for font size changes.

Can I make the font even larger?

Yes, for even larger text, you can enable “Larger Accessibility Sizes” within the “Display & Brightness” settings.

Will changing the font size affect my battery life?

No, changing the font size has no impact on battery life.

Can I change the font style as well?

No, iOS does not allow the changing of font styles system-wide, only the size.

What should I do if an app doesn’t support the new font size?

You can try contacting the app developer to request support for dynamic font sizes or look for alternative apps that offer this feature.


Changing the font size on your iPhone is a convenient way to tailor your device to your specific needs and preferences. Whether it’s for better readability, eye health, or just a fresh look, this simple customization can make a significant difference in your daily interaction with your phone.

It’s an essential feature that highlights the importance of accessibility and personalization in technology. By following the steps outlined in this article, you’ll be able to enjoy a more comfortable and personalized iPhone experience. And remember, if you ever need to adjust the size again, it’s just a few taps away.