what is a3 paper size
The width of an A3 corresponds to the length of an A4 while its length corresponds to the width of a A2. A3 measures 420 x 297 mm or 16.54 x 11.69 inches. Its printing surface, including margins, is 394 x 257 millimeters. Its area is 0.125 square meters, or 0.15 square yards,1.35 square foot, 193.75 square inches.