A-Series Paper Sizes

A0 = 84.1 × 118.9 cm / 33.1 × 46.8 in

A1 = 59.4 × 84.1 cm / 23.4 × 33.1 in

A2 = 42 × 59.4 cm / 16.5 × 23.4 in

A3 = 29.7 × 42 cm / 11.7 × 16.5 in

A4 = 21 × 29.7 cm / 8.3 × 11.7 in