eBook Cover Size Specifications

Size Specifications for eBook Covers – LAST Updated SEPTEMBER 2015

Here is an essential summary of ebook cover specifications for all major ebook publishing sites.


Yes, please refer to my page with my cover size specifications that work – click here…

“What size should an ebook cover be?” is a question often asked by ebook authors new to ebook publishing as well as by experienced authors – since specifications change from time to time.  As an ebook cover designer, I attempt to stay updated on this matter.

Firstly, when we talk about ebook cover size, there isn’t just one attribute to consider, but three!


There is the File size – how many megabytes big your ebook cover file is, e.g. 1.35 MB.  This can easily be seen if you hover over an image stored on your computer, or right-click and check “Properties.”  Under “General” you will see the size.

Then there are the Dimensions.  That is the physical height and width of the image. Right-click on a saved ebook cover image on your computer, go down to “Properties,” then select the“Details” tab at the top, and scroll down to find the Dimensions – height and width.

NOTE:  This image just illustrates HOW to find the size specifications for any picture on your computer.  It is NOT the size of an ebook cover.  For the correct size of an ebook cover please read till the end…

Dimensions can be measured in inches or millimetres, but it is more usual to be stated in pixels, e.g. 1200 x 2500 pixels.  This will not give you the RATIO directly, but you can use your math skills to calculate that.   The 1200 x 2500 image has a ratio of 1:2.08 (just divide 25 by 12!)

Thirdly, when considering the size of an ebook cover, there is the Resolution.  Once again right-click on a saved image, click on “Properties”; select the “Details” Tab and scroll down to Resolution.  This gives you the Pixels or Dots per inch.


Now this is the tricky part – different sites have different ebook cover size specifications for each of the above three aspects!  This can seem really confusing at first, especially since ebook cover requirements are sometimes not clearly stated by the sites themselves. Every so often authors only discover a cover did not work once they see it with a stretched-out or blurry  look on their Kindle!

Here is an essential summary of ebook cover specifications for all major ebook publishing sites.



Yes, please refer to my page with my cover size specifications that work – click here…



  1. Good walk-through.

    The note about max 2MB file size on sites is often due to the WordPress (and other blog platform) max upload default set at 2MB. So a blog looking to add your book image will default under that. However, if putting something on a blog you want rapid image display so a file size under 500k (or smaller!) will be important.

  2. Thanks so much for posting this. I had just completed about two months work on an ebook cover with artist Mark Hardman but we had used the old 600 x 800 specs. I was in a near panic at the loss of all our hard work. Fortunately I also created a paperback version and it was nearly the size of the specs you recommended. I really appreciate this information and have shared it with over 1000 other authors on fb.

    • Thank you for the feedback! I always try to keep up to date with book size requirements and its with the help of kind authors like you that I am able to discover what works and what’s the latest happening in the e-publishing platforms.

    • The info is up-to-date (April 2014). Check the links in the sections – they will take you to the various websites and then you can verify. Unless you know of a very recent change happening that I am not aware of – in which case I would be grateful if you could let me know…

      • chrisalmeida

        I had heard rumors about iTunes updating their requirements. Not sure if that includes their requirement for cover sizes. Thank you for keeping such a central resource up-to-date. :) So I gather that you use the 1:1.5 for all your covers even for Amazon? Do they require a separate 1:1.6 version?

      • charles

        I wonder why Amazon requires those specs. It’s far higher than any device screen they currently offer. It even surpasses the iPad Air screen. It could be so their books could be dowloaded to and read on devices such as the iPad Air (via the Kindle App) without loss of clarity.

  3. No, the 1:1.6 size is just a recommendation, not a requirement. I have been keeping an eye on the covers on Amazon and honestly I see the top authors go for 1:1.5 – perhaps because that is the proportion used for a paperback too. Will check on iTunes but I have not heard anything…

  4. Maureen Pantoja

    Thank you very much for this information! Glad i found this, it’s just what i need to do my first e-book design project.

  5. charles

    With regard to the quote under Kobo, any designer will tell you 900dpi (especially for something that displays on a screen) is way too high. It must be a mistake. Kobo needs to update their specs correctly.

    Even for offset printing we use 300dpi (or more correctly, ppi) which is standard. Device screens these days are getting ever sharper, but there is none that sharp.

    The Samsung S5 screen resolution is 1080 x 1920 pixels at 5.1 inches (~432 ppi pixel density), while the Apple iPhone 5S Screen is 640 x 1136 pixels at 4.0 inches (~326 ppi pixel density).

    Apple’s latest iPad Air is 1536 x 2048 pixels at 9.7 inches (~264 ppi pixel density).

    For the Amazon Kindle Fire HD it is 800 x 1280 pixels at 7.0 inches (~216 ppi pixel density).

    Hope it’s not an information overload. The information on pixel density is taken from GSMarena.com.

    • Yes, I always found the Kobo one rather amusing – 900 dpi. It is still there in their writing life guide – I just checked (1/5/2014). I am sure it was meant to be 90 ppi. Thank you for all the detailed info on screens.

  6. I am working with an artist to design a wrap around cover for print and an ebook cover of the same design. She asked about format. What do I ask for? And do I need a different file for the ebook cover than the print cover?

  7. Great comprehensive article. Another one to add to this list is Bowker, the US ISBN Agency’s recommendations for a cover, which is 1600 pixels x 2400 pixels. This is what I go by for my books since it seems to be linked to what all the publishing houses use as a standard for printed books that tie into other book versions (epub, PDF, etc).

  8. Juan

    I can’t seem to find the Amazon recommendation cited by Robert Gregory Browne of cover pictures at least 2820 pixels wide. Reading similar topics in other sites, they have similar quotes to Robert’s with this link as the source: https://kdp.amazon.com/help?topicId=A2J0TRG6OPX0VM. Well *now* that link has a different (smaller) size recommendation for book covers, so the recommendation changed again! It currently says “For best quality, your image should be 2500 pixels on the longest side”. Thanks for this post, it’s very useful.

    • Always start with 300 or 330 dpi since you will need that for a paperback version in future. You can change it to 72 dpi for the ebook version, but I just leave mine 300 dpi as it really makes no difference on the screen.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s