How to Change the Heading Font Size on my Shopify Website?

Understanding the Importance of Font on Your Shopify Store
Typography is more than just aesthetics—it plays a crucial role in user experience and brand identity. Did you know that 75% of website credibility is based on design, including fonts? The right font size can enhance readability, improve user engagement, and even boost conversions. If your headings are too small or too large, it could negatively impact your store’s professionalism and readability.

How to Change the Heading Font Size on my Shopify Website?
Whether you’re looking to make a minor tweak or a complete overhaul, adjusting heading font sizes in Shopify is straightforward. You have several methods at your disposal, including using the Shopify Theme Editor, adjusting CSS in the theme code, or using Liquid variables.
Using the Shopify Theme Editor
- Log in to your Shopify Admin panel.
- Navigate to Online Store > Themes.
- Click Customize on your active theme.
- Look for the Typography section under Theme settings.
- Adjust the heading font size using the available options.
- Click Save and preview your changes.
Editing CSS to Manually Adjust Heading Sizes
For precise control, modifying the theme’s CSS is a powerful option.
- Go to Online Store > Themes.
- Click Actions > Edit Code.
- Locate the theme.css or base.css file.
- Add or modify the following CSS code:
h1 { font-size: 30px; } h2 { font-size: 24px; } h3 { font-size: 20px; } - Save your changes and refresh your site to see the updates.
How do I customize my header in Shopify?
Your store’s header is often the first thing customers see. Customizing it to align with your brand can make a significant difference.
Changing the Header Font Size via Liquid Code
If you want to set a specific font size for a heading, you can use inline styles:
<h1 style="font-size: 25pt;">Test</h1>
This will ensure your Heading 1 text appears in 25pt font. Adjust the value to meet your design needs.
Using an App for More Flexibility
If you prefer not to edit code, Shopify apps like Fontify or EasyFonts allow you to make font changes without technical knowledge.
Customizing Heading Fonts on Shopify: Best Practices
To maintain a professional look, follow these best practices:
- Ensure consistency: Use uniform font sizes across pages.
- Optimize for mobile: Test heading sizes on different screen sizes.
- Prioritize readability: Avoid overly decorative fonts that reduce clarity.
- Use contrast effectively: Ensure heading text stands out against the background.
External Resources for Further Learning
- How to Change Fonts in Shopify – Shopify’s official guide
- SEO Strategies for New Small Businesses – Learn how font and design impact SEO
Final Thoughts
Changing heading font sizes in Shopify isn’t just about aesthetics—it affects readability, branding, and even sales. Whether you adjust it in the Theme Editor, CSS, or Liquid, making thoughtful changes will enhance your store’s professional appeal. If you’re looking for an Affordable Website Design, ensuring the right typography is a key element of user experience.

Corey VanDeVelde is the founder and owner of 614 Digital, a Columbus, Ohio-based digital marketing agency established in 2015. With over 10 years of experience in digital marketing, Corey has built more than 100 websites and actively manages over 30 SEO campaigns for businesses throughout Columbus and beyond. His work focuses on delivering high-performing, conversion-driven websites alongside long-term SEO strategies that generate measurable growth.
Corey’s background spans across web design, SEO, paid advertising, and full-scale digital marketing strategy. Through 614 Digital, he has helped businesses across multiple industries strengthen their online presence, improve search rankings, and generate consistent leads. His approach is rooted in real-world performance, combining clean website design with proven SEO techniques that drive traffic and revenue.
His journey into digital marketing started with a passion for fitness, where he built a meme-based social media account that grew to over 50,000 followers. That early success sparked a deeper understanding of audience engagement and content strategy, ultimately leading to the creation of 614 Digital.
Today, Corey continues to work hands-on with clients, offering services including website design, SEO, social media management, email marketing, and paid advertising—helping businesses scale with practical, results-focused digital strategies.
