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How to Easily Change the Font Size in WordPress

Do you want to change the font size in your WordPress posts or pages?

Sometimes, you may want to make a line or a paragraph larger, or you might want to increase the font size of your entire page content.

In this article, we’ll show you how to easily change the font size in WordPress. You’ll learn not only how to change font size in your WordPress posts, but also how to do it across your website.

Change font size in WordPress

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If you’d prefer written instructions, just keep reading.

Method 1: Using Paragraph Headings

It takes your visitors just a couple of seconds to decide whether they want to stay or leave your website. This gives you very little time to convince them to stay on your website.

Using Headings in your content is a great way to grab user attention.

They allow you to break your posts and pages into sections using different headings (often called “subheadings”).

Headings are great for SEO as well. Search engines give proper headings more weight than normal paragraph text.

How to add a heading in the default WordPress block editor

You can add a heading to your posts or pages by simply adding the ‘Heading’ block. You can search for it or find it in the ‘Common Blocks’ section in the WordPress block editor.

Adding a heading block in Gutenberg

The block will default to Heading 2. Normally, it makes sense to stick with Heading 2 for your subheadings. If you want to change this, then you can simply click on the ‘H2’ drop-down to select a different size.

Selecting your Heading size in the block editor

Alternatively, you can change this in the block settings on the right-hand side of the screen. You can also change the heading’s color there as well.

How to add a heading in the older Classic Editor

If you are still using the older classic editor in WordPress, then you can add headings using the ‘Paragraph’ drop-down.

Just highlight the text that you want to turn into a heading, click the ‘Paragraph’ drop-down, and select your heading size.

Creating a heading by clicking on the Paragraph drop-down in the classic editor

The sizes and colors of the different Heading styles are controlled by your theme’s stylesheet (style.css).

If you’re using a premium WordPress theme, then you may have the option to change these settings under Appearance » Customize.

Using subheadings in your articles makes it easier for readers to follow what you’re telling them. At the same time, it also makes your WordPress posts SEO friendly.

Method 2: Changing the Size of the Text in the Block Editor

What if you want to have a paragraph or even your whole post in a larger font? You can do this really easily using the default WordPress block editor.

Just click on any paragraph block, then select the font size under ‘Text Settings’ on the right-hand side.

Changing the text size of a paragraph block

You can select from the drop-down, which covers Small, Normal, Medium, Large, and Huge. If you change your mind, then just click the ‘Reset’ button to set your paragraph back to the default text.

There’s also a ‘Custom’ option where you can simply type in the pixel size that you’d like. If you want, you can also set a large Drop Cap to appear at the start of your paragraph.

These options aren’t available in the older classic editor for WordPress. If you want to use them, then think about making the switch. Our tutorial on how to use the new WordPress block editor will help you.

If you are determined to stick with the classic editor, then this next option is for you.

Method 3: Change Font Size Using The TinyMCE Advanced Plugin

TinyMCE Advanced is a WordPress plugin that gives you more control over font sizes and text formatting, as well as a range of other features.

This is particularly useful with the older classic editor, but it also works with the block editor. It adds a new block called “Classic Paragraph” that has all the TinyMCE controls.

To use it, you’ll first need to install and activate the TinyMCE Advanced plugin. If you’re not sure how to do that, check out our step by step guide on how to install a WordPress plugin.

Next, go to Settings » TinyMCE Advanced to configure the editor settings. This is where you can set up the buttons you want to use in the TinyMCE Advanced toolbar.

If you’re using it with the Classic editor, then you should see that TinyMCE has the ‘Font Size’ drop-down enabled by default in the second row of icons.

You can move it to the first row by dragging it upwards if you want.

The font sizes drop-down button on the TinyMCE Advanced menu for the classic editor

If you’re using the block editor, then you’ll need to scroll down the screen and add the Font Sizes drop-down to the toolbar by dragging and dropping it:

Adding the font sizes button to the TinyMCE Advanced block toolbar

Make sure you click ‘Save Changes’ at the bottom of the screen.

To see the button in action, create a new post or edit an existing one.

In the block editor, you’ll now have the option to add a ‘Classic Paragraph’ block. It will have the TinyMCE Advanced controls, like this:

The Classic Paragraph block in the block editor, added by the TinyMCE Advanced plugin

In the classic editor, you’ll see the TinyMCE Advanced toolbars with a font size drop-down:

Changing the font size using the TinyMCE Advanced editor

You can select any font size from the drop-down.

Note: this doesn’t give you as many options as the WordPress block editor, and you can’t type in your own font size.

Method 4: Change Site-Wide Font Size Using CSS

If you are changing font sizes every time you edit a post, then you may want to make it easier by changing it permanently in your theme.

The good news is that you can change the default paragraph size across your whole site. The best way to do this is by using the Theme Customizer under Appearance » Customize.

Some WordPress themes may come with an option for you to change the font size. If you can find this option, then you can use it without writing CSS code.

However, if your theme does not have that feature, then you can add custom CSS to add your own font size rules.

Simply click on the ‘Additional CSS’ option in the theme customizer. This is where you can store all your custom CSS code.

Using the Customizer to add CSS code to your site

Now under the additional CSS text box, simply add your CSS code. In this example, we are changing the font size to ’16px’, you can choose a different font size.

p { 
font-size:16px; 
} 

You’ll immediately see the changes on the preview on the right-hand side of the screen. If you’re happy with the font size, click the ‘Publish’ button at the top of your screen to make it live.

Note: Your custom CSS will only be applied to the theme you’re using. If you later choose to switch to a different WordPress theme, you’ll need to copy and paste it into the Customizer again.

The above code only applies to paragraph text. What if you wanted to change the font size of all h2 sub-headings?

Simply modify the above code to target the h2 element in your theme like this:

h2 { 
font-size:32px; 
} 

You can do the same thing with other headings as well by simply changing h2 to h3, h4, or h5.

We hope this article helped you learn how to easily change the font size in WordPress. You may also want to see our guide on how to use custom fonts in WordPress or our list of the best drag & drop WordPress page builder plugins.

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Reader Interactions

172 CommentsLeave a Reply

  1. Thank you. Your explanation is clear. But, I cannot apply it to my editing activities. In my Block Editor and Classic Editor, there is no font size dropdown menu. It’s frustating. Can you help me?

  2. Hi there,

    thanks for this tutorial. I was trying to do the fourth method and wanted to change my H2 size. I copy and pasted the code into my custom CSS but when I change the px value nothing happens. The Size doesn’t change. Very annoying :O

    • You may need to check with your theme’s support in case they are overriding your CSS

      Admin

  3. In the new wordpress block editor, regardless of whether I give it a H1 or H4 heading, it doesn’t change the size of the font at all. Sure, in the editor the size changes, but when I publish, there is no size change for what the public sees.

    • Your theme may have styling for your headings that make the text look the same. You would either want to edit it with CSS or reach out to your theme’s support.

      Admin

  4. Hi, is there a way to set/change defaults with the Classic paragraph editor? So for example if you wanted each block of text to have size 14 in Book Antiqua, is there a way to keep as a preset instead of having to manually change every block or even line?

    • For what you’re wanting, you would likely need to use the CSS method from this article to set the text how you’re wanting.

      Admin

  5. Hi there,
    I have the tiny mce advanced plugin. I added the font size to the selection but when i go to my pages, but doesn’t appear and I’ve clicked through all the options and don’t see where else to add it.

    • You will likely need to reach out to your specific theme’s support and they should be able to assist with what could be preventing the changes.

      Admin

  6. Hello. Thanks for the posting. I have one question. If I want to enlarge a couple of words in one block, how can I do it?

    • You would likely need to edit the paragraph using HTML to manually add the text changes to specific sections.

      Admin

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