# How to Choose the Right Email Template Size

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## Table of contents

- Why email template size matters
- The ideal email template size
- Ideal size for different email template components
- How to set email template size with Mailmodo
- Bottom line

In email marketing, the template size often influences your campaign's overall effectiveness. A well-optimized template enhances readability and engagement, while an improperly sized one can lead to frustration and disengagement. Having the right **email template size** is essential for maintaining user interest and ensuring seamless compatibility across devices.

  

In this article, we’ve gathered insights from industry standards and our extensive client experience to provide you with key guidelines. Learn about the ideal dimensions to use for your email templates to create visually appealing emails that resonate with your audience and improve your marketing efforts.

## Why email template size matters

  

The size of your email template can make or break how well your emails perform. Here’s why it’s critical to get it right:

  

### 1. Provides a better user experience

  

A well-sized email template enhances user experience by making content easy to read and navigate through. This reduces the likelihood of reader frustration and disengagement.

  

### 2. Ensures compatibility across devices

  

Different email clients display emails in their own unique ways, depending on the size of the email templates. So, using the appropriate email template size ensures consistent rendering across various devices and email clients. A consistent experience fosters trust and reliability with your audience.

  

### 3. Boosts performance and load times

  

Larger emails can significantly slow loading times, especially on mobile devices. If your email is bulky and takes too long to appear, users will quickly lose interest. A well-optimized email template will load fast, ensuring that your recipients don’t have to wait to engage with your content.

  

## The ideal email template size

  

When it comes to ideal email template size, there’s no one-size-fits-all answer; it varies based on your specific design, content, and goal.  If you're unsure where to start, using a [free email template builder](https://www.mailmodo.com/features/email-template-builder/) can help you experiment with different sizes and layouts easily. Different email clients render emails in different ways, so the email clients that your audience uses also matter.

Based on industry standards and our experience with clients at Mailmodo, we’ve compiled key guidelines for the ideal email template sizes. Below is a detailed breakdown of the specifications to maximize your email impact.


![Ideal email template size](https://res.cloudinary.com/mailmodo/image/upload/f_auto,q_100/v1729033844/strapi/email_template_size_3_7b0402cf0e.png)

  
  

### Width: The Goldilocks zone

  

The ideal width for most emails sits at 600 pixels, that is, 15.87 cm. Why? Because it fits like a glove in most email clients; no weird cropping and no scrolling side to side. You can certainly increase the width. Expanding the maximum width to 700px, 800px, or even 900px is also perfectly acceptable. Just make sure your email still renders perfectly across platforms and devices. The last thing you want is a beautifully designed email that no one can fully see and your email campaign getting ruined.

  

### Height: Keep it tight and engaging

  

There’s no hard-and-fast rule for height, but let’s face it: the longer your email, the faster your readers will drop off. While there’s no limit, less is more when it comes to email template height. One of the best practices is to break your content into digestible chunks, keep it engaging, and be strategic with your CTAs. You’re not writing a novel so, keep the email message concise and make every scroll count.

  

### Weight: Stay under 102 KB

  

Email weight matters more than you think. If your email exceeds 102 KB, Gmail will clip it, meaning your subscribers will miss out on the full content unless they click “View Entire Message” (spoiler: most won’t). Keep your images compressed, your code clean, and your overall email size light. This ensures faster load times and a better user experience.

  

### Mobile responsiveness: No more pinch and zoom

  

Here’s the deal: more people are opening emails on mobile than ever before. So, if your emails aren’t optimized for a mobile width of 320 pixels to 480 pixels (8.46 cm to 12.7 cm), you’re asking your audience to pinch and zoom, and nobody likes that. [Responsive design techniques](https://www.mailmodo.com/guides/responsive-email-design/), like media queries, ensure your emails adapt to different screen sizes without losing their visual appeal. Keep it sleek, easy to read, and mobile-friendly.

  

<div class="highlight-gray"> <p> <strong>💡 Related guide: <a href=https://www.mailmodo.com/guides/mobile-email-design/></strong>11 Must-Know Mobile Email Design Tips to Keep Your Subscribers Happy</a></p> </div>

  

## Ideal size for different email template components

  

When designing an email template, understanding its key components is essential for creating effective communication. Each part plays a distinct role in delivering your message and engaging your audience. In general, the width of the elements majorly depends on the width of the email template. The main elements and their sizes for proper desktop viewing are as follows:

  

![Ideal size for different email template components](https://res.cloudinary.com/mailmodo/image/upload/f_auto,q_100/v1728427822/strapi/email_template_size_2_1d9026543e.png)

  

| **Component** | **Size** |
|--------------------|--------------------------------------------------------------------------|
| **Header** | Width: 600-800px, Height: 100-150px |
| **Content blocks** | Width: 600-800px, Height: 200-300px each (flexible based on preference) |
| **Footer** | Width: 600-800px, Height: 100-300px |
| **CTA** | Width: 150-300px, Height: 50-75px (flexible as per preference) |
| **Images/GIFs** | Width: 600-800px (depends on use case), Height: Flexible based on need |
| **Email signature**| Width: 300-600px, Height: 150-200px |

  
  

### 1. Header

  

The email header sits at the top of your email, prominently featuring your logo and branding. A well-designed header email banner should be around 600-800 pixels wide and 100-150 pixels high, that is, 15.87 cm to 21.16 cm wide and 2.64 cm to 3.96 cm high. A clean header and correct email header size help establish your brand identity while saving space for the rest of your content.

  

### 2. Content blocks

  

Content blocks form the body of your email containing your main message and images. Keep these blocks short and focused, ideally around 200-300 pixels, that is 5.29 cm to 7.93 cm, in the total height of your email template. Long blocks can overwhelm readers and lead to lower engagement, so aim for clarity and brevity to enhance the reading experience.

  

### 3. Footer

  

The footer wraps up your email, including essential details like contact information, legal disclaimers, and social media links. An effective footer should be around 100 pixels (2.64 cm) in height, with a maximum height of 300 pixels (7.93 cm). This keeps your email tidy while ensuring your audience has the most important information they need.

  

<div class="highlight-gray"> <p> <strong>💡 Related guide: <a href=https://www.mailmodo.com/guides/email-footer/></strong>8 Inspiring Email Footer Examples in 2024</a></p> </div>

  

### 4. CTA

  

Call-to-Action (CTA) guides your audience to take specific actions, such as visiting your website or making a purchase. The ideal size for CTA buttons is about 150-300 pixels wide and 50-75 pixels high, which translates into 3.96 cm to 7.93 cm width and 1.32 cm to 1.98 cm height. On mobile devices, consider making the button full-width to enhance usability. The CTA can be a text too, and the font size can follow the normal text size.

  

### 5. Images and GIFs

  

Visuals are vital for engaging your audience. The optimal size for email images is around 600-800 pixels wide if you are going for a full-spread image, ensuring clarity across devices. The sizes also depend on the image's use case as you might have multiple images in a row. You can check out our detailed uide on this below. [Compress images](https://imagetotextconverter.net/compress-jpeg-to-200kb) for faster loading times, aiming for a maximum file size of 200 KB for images and 500 KB for GIFs

  

<div class="highlight-gray"> <p> <strong>💡 Related guide: <a href=https://www.mailmodo.com/guides/email-image-size/></strong>What Is the Ideal Email Image Size to Use in 2024</a></p> </div>

  

### 6. Email signature

  

The [email signature](https://www.mailmodo.com/guides/email-signature/) is your [digital business card](https://www.design.com/digital-business-card). It should include your name, title, company name, contact information, and relevant links (like your website and social media). A well-crafted email signature typically ranges from 300-600 px wide and 150-200 pixels high, that is, 7.93 cm to 15.87 cm wide and 3.96 cm to 5.29 cm high. Keep it professional and consistent with your branding, using easy-to-read fonts and colors.

 <div class="highlight-gray"> <p> <strong>Free tool: <a href=https://www.mailmodo.com/tools/email-signature-generator/></strong>Email Signature Generator  by Mailmodo</a></p> </div>
 
## How to set email template size with Mailmodo

  

Mailmodo, a leading [email marketing platform](https://www.mailmodo.com/), allows you to create well-structured email templates that look great on all devices. Below, we’ll walk you through a step-by-step approach to setting the perfect email template sizes.

**Step 1:** Navigate to the template editor in Mailmodo and choose the email template you’re editing or want to set the size of.
    
**Step 2:** Under the “**Style**” tab, click “**Padding and Dimension**” and set the email width. Mailmodo sets the email width to 600 pixels by default for better compatibility.
    

![An image showing how to set up template size in Mailmodo](https://res.cloudinary.com/mailmodo/image/upload/f_auto,q_100/v1742885778/strapi/email_template_size_2_b93e655fb7.png)


**Step 3:** Click on an image block to upload an image and set banner images to 600-900 pixels wide for high-quality display.
    

![An image showing how to set up template size in Mailmodo](https://res.cloudinary.com/mailmodo/image/upload/f_auto,q_100/v1742885777/strapi/email_template_size_1_163654a3a3.png)

  

**Step 4:** Click "**Save**" after making all the adjustments.
    
**Step 5:** Use the "**Preview & Test**” option to check how the email appears on different devices.
    

If you feel like all these steps are time-consuming, Mailmodo also offers an AI Template Generator. You can pick a prompt for your email type, add a few details about your audience and goals, and the AI will generate a ready-to-use template complete with headers, content blocks, and CTAs. This lets you maintain a professional format while speeding up your email creation process.
  
 ![AI template generator final (1).gif](https://res.cloudinary.com/mailmodo/image/upload/f_auto,q_100/v1760593462/strapi/AI_template_generator_final_1_c03f7c2e50.gif)


<div class="inline_cta"><div class="ctaBox"><div class="leftdiv"><p>Your AI Assistant for Everything Email Marketing</p><div class="button_container"><a href="https://manage.mailmodo.com/auth/signup?utm_content=inline-cta-s&utm_term=/guides/email-template-size/"><button class="primary_button">Try Mailmodo AI for Free</button></a></div></div><div class="rightdiv"><img src="https://res.cloudinary.com/mailmodo/image/upload/v1760533119/strapi/image_907_1_ce416d5a3f.png" width="290" height="230" alt="cta-img"/></div></div><div class="gradient"></div></div> 

## Bottom line

  

With these **email template size** guidelines, you can create emails that grab attention and drive results with your email marketing campaigns. Focus on the right dimensions for headers, content blocks, and CTAs to ensure a sleek look. Prioritize responsiveness and readability to keep your audience engaged. By optimizing your email sizes, you enhance user experience and boost engagement.

  

Do you want to improve your email design skills further? Our ebook, made just for beginners, is full of easy tips and tricks to help you create standout emails. Get your free copy today.

  



## Frequently Asked Questions

### What’s the ideal width for an email template?

The ideal width for most email templates is between 600px and 900px. This range fits well within most email clients, preventing issues like awkward cropping or horizontal scrolling that can frustrate readers.

### How can I improve email loading times?

To enhance loading times, focus on optimizing your images by compressing them without losing quality. Keep your email's overall size under 102 KB to get better performance. Also, it is suggested to avoid large attachments.

### How do transactional and promotional email template sizes differ?

Marketing emails like transactional email templates generally have simpler, more straightforward layouts that prioritize functionality. In contrast, promotional email templates often feature richer visuals and more email content, resulting in larger overall sizes.

### Why is mobile responsiveness important in email templates?

Mobile responsiveness is vital because a growing number of users access emails via mobile and other different devices. Ensuring your emails are responsive prevents the need for pinch-and-zoom, thus improving readability and user engagement significantly.

### What is the ideal size of transactional emails?

Transactional emails are typically more concise, focusing on delivering essential details while fostering trust with the recipient. Although they may contain some marketing elements, their primary goal is to inform rather than persuade. Usually, transactional email templates range from 600 px to 1200 px. 

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---

**Author: Sneha Arora**

Sneha Arora is a writer and content strategist who turns ideas into words that connect. With 3+ years of experience and her own content agency, she helps brands tell stories, craft engaging blogs, and keep their voice fresh and authentic.

