Tool
Paper size converter
Convert any standard or custom paper size between millimetres, centimetres, inches and pixels. The pixel dimensions are calculated at common print DPI values so you can match your design to its final printed size.
| Unit | Width | Height |
|---|---|---|
| Millimetres | 210 | 297 |
| Centimetres | 21 | 29.7 |
| Inches | 8.268 | 11.693 |
| Pixels @ 72 DPI | 595 | 842 |
| Pixels @ 96 DPI | 794 | 1,123 |
| Pixels @ 150 DPI | 1,240 | 1,754 |
| Pixels @ 200 DPI | 1,654 | 2,339 |
| Pixels @ 300 DPI | 2,480 | 3,508 |
| Pixels @ 600 DPI | 4,961 | 7,016 |
Proportional preview
A4
The everyday office and document size used across most of the world.
Common uses
Letters · Reports · CVs · Flyers · Invoices
Frequently asked questions
Why are the pixel dimensions different at different DPI values?
DPI (dots per inch) describes how many pixels are packed into each printed inch. The same physical page contains more pixels at 300 DPI than at 72 DPI, so the pixel resolution scales with DPI while the physical size stays constant.
Which DPI should I use?
For everyday office printing, 150 DPI is usually fine. For commercial print (flyers, business cards, magazines), 300 DPI is the standard. 600 DPI is mainly used for fine text and small details. 72 DPI is a screen-only convention and not suitable for print.
Are these sizes exact?
The ISO A-series sizes (A0–A6) are defined as exact integer millimetres by ISO 216. US sizes (Letter, Legal, Tabloid) are defined in inches and converted to millimetres using 25.4 mm per inch.
Why does my printer not print at full page size?
Most consumer inkjet and laser printers cannot print all the way to the paper edge — they reserve a 3–5 mm margin. If you need full-bleed prints, you have to either print on slightly oversized paper and trim, or use a commercial print service.