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According to my calculations the average size of a piece of computer paper is approximately 8.5 inches by 11 inches. best to go to a printer shop, save your image to a disc or sd card, look up the number for a local printer and call to find out how much they will charge, A3 paper will probably be large enough.
List of A Papers: A4 Paper Size A4 paper is the size most used in the world. It is used as the classic paper sheet in all industrialized countries, and beyond, except in North America, which has retained different standards. The dimensions of A4 is 297 x 210 mm or 11.69 x 8.27 inches.It has an area of 0.062 mÂ², which corresponds to 0.07 square yards, 0.65 square foot, or 93 square inches. When usual and recommended printing margins are put, the printable size of A4 is 247 x 170 mm.he dimensions of A4 is 297 x 210 mm or 11.69 x 8.27 inches. It has an area of 0.062 mÂ², which corresponds to 0.07 square yards, 0.65 square foot, or 93 square inches. When usual and recommended printing margins are put, the printable size of A4 is 247 x 170 mm.