A0 has an area of one square metre (but it isn’t a square), and every other paper size in the A series is based on A0. We use A4 for writing on because it is a lot more convenient than trying to write on a square metre sheet of paper!
Moreover, what does A4 paper measure?
210 x 297
| Size | Inches | Millimeters |
|---|---|---|
| A2 | 16-1/2 x 23-3/8 | 420 x 594 |
| A3 | 11-3/4 x 16-1/2 | 297 x 420 |
| A4 | 8-1/4 x 11-3/4 | 210 x 297 |
| A5 | 5-7/8 x 8-1/4 | 148 x 210 |
Keeping this in consideration, where did A4 paper come from? A4 paper is something we’re all familiar with in Australia – we use it in our printers, our photocopiers -but what you may be surprised to learn is that A4 is actually part of an official metric standard. In fact, this was set in 1975 when it was based on a German standard that goes all the way back to 1922.
Besides, which countries use A4 paper?
By 1977, A4 was the standard letter format in 88 of 148 countries. Today the standard has been adopted by
- Belgium (1924)
- Netherlands (1925)
- Norway (1926)