ledger paper

What Is A4 And A3 Paper Sizes? Size Inches Millimeters A311-3/4 x 16-1/2297 x 420 A48-1/4 x 11-3/4210 x 297 A5 5-7/8 x 8-1/4 148 x 210 A6 4-1/8 x 5-7/8 105 x 148 What size paper is A3? Paper mm inches A3 297 x 420 mm11.7 x 16.5 inches A4 210 x 297 mm