What is the difference between an A4 and A5?

A4 size is the one we all know best – that is the standard size sheet you use in your desktop printer or photocopy machine and it measures 210 x 297 mm.

A5 is half the size of an A4 and A4 is again half the size of an A3 sheet. 

If you need to convert a paper size from inches to mm, you can use this link: