Paper Sizes

Paper Sizes


Paper sizes and dimensions have you confused? Have you spent a lot of time (like me) trying to figure out what the different dimensions actually mean? I know that when I first heard someone say I would need a A4 dimensions card and it clearly showed I was an American!


I didn't know what an A4 was, so I'm including measurements here on my site not only ao, a1, a2, a3 and a4 but also measuring information with a ruler... Yep, I was confused by that one as well.

Who knew there was so much to know about cardstock and measuring? I figured I already knew how to measure with a ruler... but, then I started hearing 6 and 4/16ths... Um, my ruler only included 8ths? Well, the ruler information will be on another page.

Below is a table that will show you what paper sizes and what the difference between an ao paper and a3 and a4 paper sizes that you will need for any specific card.

For example: If you were going to make a standard card you would look at the A4 column and run your eyes across the chart and see that you would need paper that was 8 1/2 X 11 3/4. However, for the standard US letter paper the size would be 8 1/2 X 11. Can be kind of confusing at first. The printer paper you use is 8 1/2 X 11.

Bottom line? All of these demesions start with a standard sheet for us in the USA it is an 8.5 x 11 in. That is the size of copy paper or computer paper.


Size Millimeters Approx. Inches

4A0 1682 X 2378 66 1/4 X 93 3/8

2A0 1189 X 1682 46 3/4 X 66 1/4

A0 841 X 1189 33 1/8 X 46 3/4

A1 594 X 841 23 3/8 X 33 1/8

A2 420 X 594 16 1/2 X 23 3/8

A3 297 X 420 11 3/4 X 16 1/2

A4 210 X 297 8 1/4 X 11 3/4

A5 148 X 210 5 7/8 X 8 1/4

A6 105 X 148 4 1/8 X 5 7/8

A7 74 X 105 2 7/8 X 4 1/8

A8 52 X 74 2 X 2 7/8

A9 37 X 52 1 1/2 X 2

A10 26 X 37 1 X 1 1/2

The sizes I have highlighted are the most commonly used sizes.

For more information on Paper Sizes you can click here to get more, much more! Print out the pdf file to keep handy!
If you need some Designer Paper that you can print, check these out.

Paper Sizes

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