The 24 x 36 format measures 610 x 914 mm or 24 x 36 inches. An 24 x 36 paper fromat has an aspect ratio of 1:1.5. The Area of the 24 x 36 paper size is 557,540 mm² or 864 in² with a perimeter of 3,048 mm or 120 in. An 24 x 36 format has a diagonal length of 1,098.86 mm or 43.27 in.