What's bigger A3 or A5?

If you cut a sheet of A4 paper in half along its longest side, you will end up with two sheets of A5....International A Sizes.FormatWidth x height - inchesWidth x height - mmA223.4 x 16.5 inches594 x 420 mmA316.5 x 11.7 inches420 x 297 mmA411.7 x 8.3 inches297 x 210 mmA58.3 x 5.8 inches210 x 148 mm3 more rowsPaper Size Guide - A1, A2, A3, A4, A5, A6, A7 | Hobbycraft