How to Change Font Size on Kindle

How to Change Font Size on Kindle

Learn how to change font size on Kindle in just a few taps. Customize your reading experience by adjusting text size for better comfort on any Kindle device.

Reading on a Kindle is a smooth and enjoyable experience, especially because of the personalization options it offers. One of the most useful features available to users is the ability to adjust the font size. Whether you’re reading in low light, have visual impairments, or simply prefer larger or smaller text, knowing how to change font size on Kindle can enhance your reading comfort.

Adjusting the text size is not only simple but also completely reversible, allowing you to fine-tune the reading layout as your needs change. Whether you're using a Kindle Paperwhite, Kindle Oasis, or a basic Kindle model, the process remains similar across devices.

To change the font size while reading a book, tap anywhere near the top of the screen to bring up the reading toolbar. You’ll see options like "Aa" (representing text settings), "Go to," and "Search." Tap the “Aa” button, which opens the display settings menu. From here, you can customize font size, style, line spacing, margins, and even themes like dark mode.

Within the font size section, you’ll see a row of different "A" icons in increasing size. Tap on a larger "A" to increase the text size or a smaller one to reduce it. The change will be applied instantly, so you can preview and decide which size works best. There’s no need to confirm or restart the device.

Kindle offers several preset sizes—usually 14 or more steps—so you have enough range to find the perfect fit for your eyes. These changes are applied per book, but your device typically remembers your last setting across titles. This is especially helpful for users who share a Kindle or alternate between different content types such as novels, academic PDFs, or comics.

For those using Kindle apps on iOS or Android, the method is slightly different but equally intuitive. While reading, tap the screen to bring up the menu and then select the text settings icon. Drag the slider to adjust font size to your liking. Like on Kindle devices, the changes will reflect instantly.

Some Kindle models also support custom fonts or bold text for improved readability. If the font size alone doesn’t solve visibility issues, you can go into the same text settings menu and select a bolder font or enable the “Embolden” slider. This darkens the letters without affecting size, which can be easier on the eyes for longer reading sessions.

If you’re using a Kindle with VoiceView screen reader or accessibility features, the system allows you to adjust font size even further, offering a range of large print options suitable for visually impaired users.

When reading PDF files or documents that are not native Kindle format (like .mobi or .azw), you may find that font size adjustments don’t work as well. In that case, consider converting your file to a Kindle-friendly format using tools like Amazon’s Send to Kindle or third-party apps. Once converted, font customization works much better.

In conclusion, being able to adjust font size on Kindle gives you complete control over your reading experience. It allows for comfort, accessibility, and enjoyment regardless of lighting or visual limitations. Whether you prefer compact lines or large, spacious text, your Kindle device offers flexible font settings just a few taps away.