Dimensions
A1 Paper Size
A1
Sizes
mm :
594 x 841 mm
cm :
59.4 × 84.1 cm
inches :
23.4 × 33.1 inches
Measurements
Aspect ratio :
1:1.42
Area :
499,554 mm²
Perimeter :
2,870 mm
Diagonal :
1,029.62 mm
A1 paper is part of the ISO 216 standard and is typically used for technical drawings, flip charts and posters. A1 is used everywhere except for North America and parts of Latin America. The size of A1 paper measures 594 x 841 millimeters. It is the second largest sized paper in the A Series and is exactly half the size of A0 paper.