What are the dimensions of A3 size in mm? You can read it below. We have an overview in millimetres also in inches and centimetres.
Dimensions A3 size in mm
=
width 420 mm x length 297 mm
Especially designers, graphic designers and other creatives often need the A3 size in millimetres. For example, when they start designing stationery, menus, magazine calendars or other resources in A3 size in design programs, such as InDesign. Therefore it is good to know that the A3 size in millimetres is 420 x 297 mm. Where the length is 420 millimetres and the width is 297 millimetres.
Calculate the size in millimetres with our handy calculation tool
A3 size in millimetres with bleed area
Would you like to have your print file printed at a printer? Then one of the delivery specifications is often to use a bleed area of 3 mm (all around) in your print file. This changes the ‘gross’ size, so it is important that you do not forget this.
A bleed area of 3 mm means an extra 6 mm around your A3 paper size. Both in length and width. With an A3 this means that your net size is 420 x 297 mm. And the gross size (including bleed area) is 426 x 303 mm. Then the printer cuts away the bleed area, so that the background of your A3 flyer, menu card or calendar runs neatly to the edge.
| Size | Millimeter |
|---|---|
| 4A0 | 1682 x 2378 |
| 2A0 | 1189 x 1682 |
| A0 | 841 x 1189 |
| A1 | 594 x 841 |
| A2 | 420 x 594 |
| A3 | 297 x 420 |
| A4 | 210 x 297 |
| A5 | 148 x 210 |
| A6 | 105 x 148 |
| A7 | 74 x 105 |
| A8 | 52 x 74 |
| A9 | 37 x 52 |
| A10 | 26 x 37 |
