Email sizes can be instrumental to determine if your consumer will comprehend and engage with your content. While the template width (600 px) is typical, there are nuances to be mindful of. There are no hard and fast standards for email template height like design blocks.

This piece will highlight some of the best email template sizes and explain where they fit best.

Email template dimensions

Responsive email sizes standards are about showing across all email applications and devices. Most of your correspondents use Gmail on a computer or the iPhone emailing app. However, many individuals still use Outlook, Yahoo Mail, or AOL to view emails. This implies you'll have to deal with different processing algorithms and display issues.

Your emails must be adaptable to fit every gadget. This is a well-established pattern; therefore, all premade email layouts and email frameworks follow suit.

Email design height

Email services do not tightly limit the height of your email template. There is no minimum size. When creating a new email template, there are numerous steps to take.

Remember your message's goal: a recipient should understand it immediately after opening your email. Put the most crucial info above the fold (350 pixels).

Keep your emails simple. A regular newsletter or promotion email is between 2500- 3000 pixels.

Email design width

600 pixels is the typical width suggested for years. Nothing has changed: The golden rule is 600 pixels. This is the average email size width of desktop email clients. In addition, templates wider than 640 pixels in width are not displayed in Gmail.

Email header sizes

The email header usually includes your trademark, browser links, and navigation buttons. Keep to the standard 200 px header size if you want a simple design.

Email content sizes

Email content includes text, images, videos, GIFs, buttons, and even dividers. Our general suggestion is to keep the narrative simple, aesthetically appealing, and actionable.

Always keep in mind the image size. Images hosted on a site and linked in emails don't affect email size. Email services and template makers impose picture size limits to minimize server space. You choose the email template resolution for the image size in pixels, and the suggested resolution is 72 dpi. This is a 2x image size for Retina monitors.

There are various suggestions for the email footer. The footer usually contains legal information, unsubscribe buttons, and notes.

A personal signature can be added to the email footer. In this scenario, please keep it to 100 pixels.

How do transactional and promotional email templates sizes differ?

Transactional emails are frequently smaller in size. They serve a purpose: to affirm, educate, or alert. Some marketing content is permitted in such emails, but the template should be kept simple. Typical transactional email designs sizes are 600 × 1200 pixels.

Marketing emails are designed to promote your products, services, or information while building trust. In this manner, your email can be 5000 pixels or longer.

Table Conveying ultimate template dimensions

DimensionRecommendedCommon alternativeOptions
Template width600 px640 pxup to 750 (experiment and test)
Template heightput important details to the first 350 pxup to 3000 pxfollow your common sense
Header heightup to 150 – 200 pxup to 300 pxfollow your common sense and keep it mobile-friendly
General email sizeup to 102 KBnono


There aren't many restrictions on email template size. What you should focus on is:

  • Adaptive design. Because over 55% of emails are now seen on mobile devices, adapt your email templates accordingly.
  • User's perception. Consider what your recipient sees when they open your message and how easily they grasp your key point. Keep your creativity but respect the guidelines.
  • Email testing. Evaluate each email campaign. It's okay to use non-standard designs and sizes, but make sure your HTML works in all email clients. Keeping this in mind, your recipients will love your emails.