The standard size for printer paper in North America is 8.5 x 11 inches, which is also known as letter size paper. This is the most commonly used paper size for everyday printing and documents, and it is slightly smaller than the international standard A4 size. Other common paper sizes in North America include legal size (8.5 x 14 inches) and tabloid or ledger size (11 x 17 inches) . Its important to note that there are different paper size standards in use today, including the international ISO 216 standard and the North American system.