What is A4 size in mm?

A4 paper: the most widely used paper size in Europe and Japan. This size is particularly popular for printing due to its user-friendly and practical dimensions. However, A4 isn’t the global standard. In the USA, Canada, and Mexico, the US Letter size is preferred, which is slightly wider and shorter than A4. But what are the dimensions of A4 paper in millimeters? See below for the answer. You can also find the A4 dimensions in inches and centimeters.

Dimensions A4 size in mm

= width 210 mm x length 297 mm

Especially designers, graphic designers, and other creatives often need the A4 dimensions in millimeters. This is vital when designing stationery, menus, magazine calendars, or other A4-sized resources in design programs like InDesign. Therefore, it’s good to remember that the A4 size in millimeters is 210 mm wide and 297 mm long.

Use our calculator to perform the calculation effortlessly

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Width & Height in :

a4-paper-size-in-millimetres

A4 size in millimetres with bleed area

Planning to have your design professionally printed? You’ll often find that print specifications require a bleed area of 3 mm on all sides of your file. This “bleed” extends beyond the intended trim size, effectively increasing the gross dimensions of your document. It’s crucial to include this bleed area in your file to avoid any unwanted white edges when your project is trimmed.

A 3 mm bleed means you add an extra 6 mm to both the length and width of your A4 design. So, with a standard A4 size of 210 x 297 mm, your net size remains 210 x 297 mm. However, the gross size (including the bleed area) becomes 216 mm wide x 303 mm long. The printer will then trim away this bleed area to ensure the background of your A4 flyer, menu card, or calendar extends perfectly 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
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