What's the difference between UK and US Paper and Envelope sizes?

If you’re new to card making or have recently moved countries, you may have heard of different card sizes in the crafting community. There are A2 size cards, A4 cards, A5 cards, etc. It can all be very confusing, but it’s actually a little easier than you might think and hopefully our video below will shed more light on UK vs US card sizes.

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US paper (think printer copy paper) is letter size and it’s sized to 8.5 inches x 11 inches. If this is folded in half and trimmed in two, you’ll get two A2-sized cards. An A2-sized card is 4.25in.x 5.5in.

UK paper size is A4 sized which is 8.25 inches by 11.75 inches. When you fold an A4-sized paper in half you get an A5-sized card. If you fold an A4 in half and then trim it in half you get two A6-sized cards.

Other card sizes stem from common print sizes. Some of the more popular standard photo print sizes in the US and UK are 4x6, 5x7, and 8x10 (inches). Just to name a few. Photo frames are found in this size and this has influenced card sizes as well. Of course, there are other popular card sizes like 6x6 and 8x8(inches) and these originate from common scrapbook paper pad sizes.

There are plenty of pre-trimmed and scored card blanks available in various sizes. Please check out our wide selection of card blanks and envelopes on Craftstash! And also watch the video to see UK vs US Card Sizes Explained: