Postcards are great marketing tools that allow businesses to reach a large number of prospective customers at a low cost. If you’re thinking about printing postcards to promote your business, you may want to know what are the standard dimensions of a postcard.




We’ve all seen a postcard. They’re usually a small card with an image on one side and space for writing on the other. The nice thing about postcards is that they’re able to convey a lot of information clearly and compactly. They make for perfect refrigerator decorations and are an easy way to send someone a greeting from a faraway place.


Postcards for Marketing


Postcards are also amazing cost-effective marketing tools. They allow you to reach a large number of potential customers at a low cost. Postcards can even be more effective than traditional direct mail because people don’t have to open an envelope, unfold the paper, and then read it. Most people don’t even go through that process and simply throw out the mail without even reading it.


The cool thing about postcards is that they’re super simple. Being simple is a good thing because all people have to do is flip it over and read your quick message. Even when people know it is direct mail, curiosity outweighs them, so they flip the postcard and read it. Mission accomplished!


Postcards’ benefits in marketing are tremendous, and the good thing is that they aren’t common or overused. Using postcards can differentiate you from the rest of your competition. If you’re thinking about using postcards to promote your business, you may want to ensure that you use the right size. To do that, you will need to know the dimensions of a postcard.


What is the Standard Postcard Size?


The standard postcard size is 4” x 6” and 5” x 7”. Many printing companies accommodate many different dimensions, depending on the design. Although these standard sizes are the most popular, the sizes of postcards can vary to be as small as 3.5” x 5” and as large as 6.125” x 11.5. Postcards within those dimensions can still be processed as a postcard by the U.S. Postal Office since they are less than .25” thick.


If you want the postcard to be bigger than the previously mentioned dimensions, then it will be a little more costly. However, these dimensions will allow more flexibility with the design of the cover, and more space for longer messaging. Commonly used larger dimensions include:

  • 4” x 9”
  • 5” x 8”
  • 6” x 11”


what are the standard dimensions of a postcard


How Postcard Dimensions Determine the Cost of Mailing


The postcard must meet the following requirement in order for the U.S. Postal Service to charge lower postcard rates. The postcard must be:

  • Rectangular in shape
  • At least 3.5” x 5 inches big
  • At least 0.007” thick
  • At most 4.25” x 6” big
  • At most 0.016” thick


If your postcard doesn’t fit these requirements, then the U.S. Postal Service will consider it a letter and charge you for a letter-size postage. That is why we recommend the 4” x 6” as a great option for marketing postcards.


Where Can I Get Standard Dimension Postcards?


Fotex Prints provides the most cost-effective postcard printing online with many custom printing and finishing options. Fotex Prints offers many custom printing and finishing options such as:

  • Gold foil details
  • Silver foil details
  • Glossy spot coating
  • CMYK
  • WhiteographyTM printing and more.


For all of your printing needs, visit our website at or call us at (858) 228-7697.