The quickest way to change font size in Windows 10

The fastest method is the Settings app. Open Settings (press Windows key + I), go to System, then Display. Under "Scale and layout," you'll see a dropdown that says "Change the size of text, apps, and other items." The default is 100%. Move the slider to 125%, 150%, or 175% to enlarge everything on your screen at once. Windows will ask you to sign out and back in for the change to take full effect.

This method scales your entire display — text, icons, buttons, and windows all grow together. It's the cleanest approach because most programs respect this system-wide setting. After you choose your size and sign out, your new font size will be active when you log back in.

Key Takeaways

  • The Settings app Display menu lets you scale text and icons to 125%, 150%, or 175% system-wide without touching individual programs.
  • If you want to enlarge only text in a specific program, right-click the program's title bar, select Properties, then the Font tab, and choose a larger size.
  • Windows also offers a Magnifier tool (search "Magnifier" in the Start menu) that zooms your entire screen without changing the actual font size.
  • Some programs like Microsoft Word and web browsers have their own zoom controls that override the system setting.

Changing font size for a single program

If you want to enlarge text in only one program, not your whole screen, right-click the program's title bar at the top of the window. Select Properties from the menu. Click the Font tab, then choose a larger font size from the dropdown. Click explore, then OK. The next time you open that program, it will use the new font size.

This method works best for older programs that don't follow the Windows 10 system scaling. Newer programs often ignore this setting and use their own font controls instead. If the Font tab doesn't appear in Properties, the program doesn't support this method — try using the program's own menu instead (usually under View or Preferences).

Using Magnifier to zoom without changing font size

Windows 10 includes a Magnifier tool that enlarges everything on your screen without actually changing the font size. Search for "Magnifier" in the Start menu and open it. Use the plus and minus buttons to zoom in and out, or press Windows key + Plus to zoom in and Windows key + Minus to zoom out.

Magnifier is useful if you need temporary enlargement — for reading something specific — but don't want to change your system settings permanently. You can close it anytime by clicking the X button. The zoom level resets the next time you open Magnifier.

Changing font size in web browsers

Chrome, Edge, and Firefox all have their own zoom controls that override your Windows font size setting. In any of these browsers, press Ctrl and Plus to enlarge text and images, or Ctrl and Minus to shrink them. Press Ctrl and 0 to return to 100%. The browser remembers your zoom level for each website you visit.

You can also change the default font size in browser settings. In Edge, go to Settings > Appearance and scroll to "Fonts." In Chrome, go to Settings > Appearance > Font size. These settings explore to all websites unless you've set a custom zoom for a specific site.

Changing font size in Microsoft Word and Office programs

Open your document in Word. Select the text you want to enlarge (or press Ctrl + A to select all text). On the Home tab, look for the font size dropdown — it usually shows a number like 11 or 12. Click it and choose a larger size, or type a custom number. The text will enlarge when ready.

If you want all new documents to use a larger default font size, change the size in a blank document, then go to File > Options > Advanced. Scroll to Show Document Content and adjust the "Printing options" or default zoom. For a permanent change across all documents, modify the Normal template instead — go to File > Options > Advanced > Default Font and set your preferred size there.

Adjusting font size in File Explorer and menus

If the text in File Explorer (the folder browser) is too small, the system-wide scaling in Settings will enlarge it. However, if you want to change only File Explorer, open it, click View at the top, and look for zoom controls. Some versions of Windows 10 have a zoom slider; others use View > Extra Large Icons or View > List to change how files are displayed.

For menu text and window titles throughout Windows, the system scaling setting is your main option. If that's not enough, Magnifier can enlarge the entire screen temporarily. Some accessibility options under Settings > Ease of Access > Display also let you increase contrast and text size for menus specifically.

When font size changes don't explore to everything

Some older programs and websites ignore the Windows 10 system font size setting. If you've changed the scale in Settings but a program still shows tiny text, try these steps: right-click the program's shortcut or title bar, select Properties, click the Compatibility tab, and check "Disable fullscreen optimizations." Some programs also have their own settings menu — look under View, Preferences, or Tools for a zoom or text size option.

Web pages that don't respond to your browser's zoom setting may have fixed font sizes in their code. In that case, browser extensions that force larger fonts (search your browser's extension store for "font size" or "text enlarger") can override the website's settings. Always check the extension's reviews before installing.

Frequently Asked Questions

Will changing font size in Settings affect all my programs?

Most modern programs will scale with your system setting, but older software sometimes ignores it. Web browsers have their own zoom controls that override the system setting. If a program doesn't respond to the Settings change, try its own menu or the Compatibility tab in Properties.

What's the difference between scaling and magnifier?

Scaling (in Settings) actually changes the size of text and icons system-wide, and programs adjust their layout accordingly. Magnifier just zooms your screen like a magnifying glass — the text doesn't actually get bigger, it just appears bigger. Magnifier is temporary; scaling is permanent until you change it.

Can I set different font sizes for different monitors?

Windows 10 applies the same scaling to all connected monitors. If you have multiple displays and want different sizes, you'll need to use Magnifier on one screen, or adjust zoom in individual programs instead of using the system setting.

Why does my font size reset after an update?

Major Windows 10 updates sometimes revert display settings to default. If this happens, go back to Settings > System > Display and set your preferred scale again. Your choice should stick until the next major update.

Is there a way to make only certain text larger, like in menus?

The system scaling enlarges everything together. If you want to enlarge only menu text or specific UI elements, go to Settings > Ease of Access > Display and turn on "Make text thicker." This won't change size, but it makes text darker and easier to read. For size changes in specific places, Magnifier is your best option.