Paper Sizes

 

Paper sizes can be described two ways: By its dimensions or with the International Paper Sizes (ISO).

In printing we generally use the A Series of paper sizes based on these simple principles:

 

  • The long side divided by the shorter side of all “A” sizes equals the square root of two (1.4142).

 

  • Size A0 has an area of one square meter.

 

  • Size A4 is A3 cut into two equal pieces. In other words, the height of A4 is the width of A3 and the width of A4 is half the height of A3. The same applies to the rest of the sizes in the A Series of Sizes.

 

  • The standardised height and width of all of the paper formats is a rounded off number of millimeters.

 

A Series Formats B Series Formats C Series Formats
A0: 841 × 1189 B0: 1000 × 1414 C0: 917 x 1297
A1: 594 × 841 B1: 707 x 1000 C1: 648 x 917
A2: 420 × 594 B2: 500 x 707 C2: 458 x 648
A3: 297 × 420 B3: 353 x 500 C3: 324 x 458
A4: 210 × 297 B4: 250 x 353 C4: 229 x 324
A5: 148 × 210 B5: 176 x 250 C5: 162 x 229
A6: 105 × 148 B6: 125 x 176 C6: 144 x 162
A7: 74 × 105 B7: 88 x 125 C7: 81 x 11