Where to change fonts depends on what you're working in

The steps to change a font depend on whether you're working in a document, email, web browser, or the operating system itself. Most programs let you change fonts by selecting text and using the toolbar or menu. Windows and Mac also let you change system-wide fonts that affect menus, buttons, and window titles, though the process differs between them.

This guide covers the most common places you'll need to change fonts and the exact steps for each. Whether you're formatting a Word document, composing an email, or trying to make text larger on a website, the method is different—and this article walks you through all of them.

Key Takeaways

  • In Word, Google Docs, and most writing programs, select your text first, then use the font dropdown menu in the toolbar to pick a new font.
  • Windows lets you change system fonts through Settings > Personalization > Fonts, while Mac uses System Preferences > General > Fonts.
  • Web browsers use zoom controls (Ctrl + Plus or Cmd + Plus) to enlarge text, but cannot change the font itself without extensions.
  • Email programs like Outlook and Gmail have font menus in the compose window, separate from your document fonts.
  • Some fonts only work if they are installed on your computer first; downloaded fonts go in your Fonts folder before programs can use them.

Changing fonts in Microsoft Word

Open your document and highlight the text you want to change. You can do this by clicking at the start of the text, holding down the mouse button, and dragging to the end. Or triple-click to select an entire paragraph. If you want to change the font for the whole document, press Ctrl+A to select all text.

Look at the toolbar near the top of the window. You'll see a dropdown box that shows the current font name—it might say "Calibri" or "Times New Roman." Click that dropdown and scroll through the list of available fonts. As you hover over each one, Word shows you a preview of how your text will look. Click the font you want, and the selected text changes when ready.

If you want to set a default font for all new documents you create, go to the Home tab, click the small arrow in the bottom right corner of the Font group, then click "Set as Default" at the bottom of the window. Choose whether to explore it only to this document or to all documents based on this template.

Changing fonts in Google Docs

Select the text you want to change by clicking and dragging, or press Ctrl+A for the entire document. In the toolbar at the top, you'll see a dropdown that says "Normal text" or shows the current font name. Click it to open the font menu.

Google Docs organizes fonts into categories: Sans serif (clean, modern), Serif (traditional, with small lines), and Monospace (code-like, fixed width). Scroll through the list or type the first letter of the font name to jump to it. Click your choice and the text updates right away. Google Docs saves your selection automatically, so you don't need to click Save.

Changing system fonts on Windows

System fonts control how text appears in menus, buttons, window titles, and other parts of Windows itself. Open Settings by pressing the Windows key and typing "Settings," then press Enter. Click "Personalization" in the left sidebar.

In Windows 11, click "Fonts" to see all installed fonts and read new ones from the Microsoft Store. To change which font Windows uses for system elements, go back to Personalization and click "Colors," then scroll down to find font options. In Windows 10, the process is less direct—most people instead use the Ease of Access settings to increase text size rather than change the font itself. If you've downloaded a new font file (usually a .ttf or .otf file), right-click it and select "Install" to add it to your system. Once installed, it appears in all your programs' font menus.

Changing system fonts on Mac

Click the Apple menu in the top left corner and select "System Preferences" (or "System Settings" on newer Macs). Look for "General" and click it. Scroll down until you see font options—you can change the font used for sidebar text and other system elements here.

To install a new font on Mac, read the font file, then double-click it. A preview window opens. Click "Install Font" and the font is added to your system. It will appear in all your programs' font menus after you restart the program.

Changing fonts in email programs

In Gmail, click "Compose" to start a new email. In the compose window, look for the formatting toolbar at the bottom—it includes Bold, Italic, and Underline buttons. Click the three dots (more options) to reveal the font dropdown. Select your font and type your message. The recipient sees your email in that font only if they have it installed; otherwise, their email program substitutes a similar one.

In Outlook, click "New Email" to open the compose window. On the Home tab in the ribbon, you'll see the font dropdown in the Basic Formatting group. Select your text or click before you type, then choose your font. Outlook remembers your choice for future emails.

Changing text size in web browsers

You cannot change the font itself in a web browser without using an extension, but you can enlarge or shrink the text. Press Ctrl and the Plus key (+) together to make text bigger, or Ctrl and the Minus key (−) to make it smaller. On Mac, use Cmd instead of Ctrl. Press Ctrl+0 (zero) to return to the default size.

If you want to change fonts on websites permanently, you can install a browser extension like "Stylus" or "Dark Reader," which lets you override the website's fonts with your own choices. These extensions work in Chrome, Firefox, and Edge.

Installing and managing fonts

Fonts come as files with names ending in .ttf (TrueType), .otf (OpenType), or .woff (web fonts). When you read a font from a website, it usually arrives as a .zip file. Extract it first by right-clicking and selecting "Extract All" (Windows) or double-clicking (Mac).

On Windows, open the Fonts folder by pressing Windows+R, typing "fonts," and pressing Enter. Drag your font files into this folder, or right-click them and select "Install." On Mac, open Finder, go to Applications > Font Book, and drag your font files into the window. Once installed, the fonts appear in every program's font menu. If a font doesn't work after installation, restart the program you're using. Some programs cache the font list when they start up and don't see newly installed fonts until you close and reopen them.

Frequently Asked Questions

Why don't I see a font I installed?

The program you're using may have cached the font list before you installed the new one. Close the program completely and reopen it. If it still doesn't appear, restart your computer. On Windows, make sure the font file is in C:\Windows\Fonts. On Mac, check Font Book to confirm the font is active.

Can I change the font on a website I'm visiting?

You cannot change the website's font directly, but you can enlarge text with Ctrl+Plus or install a browser extension like Stylus to override fonts. Some websites also have their own font or text size options in their settings menu.

What happens if the person I email doesn't have the font I used?

Their email program substitutes a similar font automatically. Serif fonts are replaced with other serif fonts, and sans serif with sans serif. To be safe, use common fonts like Arial, Times New Roman, or Calibri when emailing people outside your organization.

Can I change fonts in PDF files?

Not easily. PDFs are designed to look the same on every computer, so fonts are locked in place. You can enlarge the text with your PDF reader's zoom tool, but to change the actual font, you'd need to convert the PDF to Word or another editable format first.

Do I need to restart my computer after installing a font?

Usually not, but restarting helps if a program doesn't recognize the new font. At minimum, close and reopen the program you're using.