# What is A7 size?

The A7 is paper size of 74 mm by 105 mm. The A7 size is the most commonly used paper sizes in Europe and Japan. The size is an A7 which is then halved four times. On this page, we answer the following question: What is A7 size?

### A7 relative to A7

An A0 has a surface area of 1 m². The length to width ratio of an A0 and all sizes of the A-series are √2:1. The area of an A7 is ½ × ½ × ½ × ½ × ½ × ½ × ½ = 1/128 m².

### A7 paper size international

In North America and parts of Latin America, the ISO 216 standard is not used. Here US Letter size of 8½ by 11 inches (279.4 mm by 215.9 mm) is used. These 6 mm wider and 18 mm shorter than A4. The master printers and copiers can be set to both sizes.

### Weight and mass

A commonly used weight for A0 paper is 80 grams. The 80 grams is for a paper of A0 size. A whole sheet of A0 paper is 80 grams. An A7 paper is 80/128 = 0,625 grams.

### Different values

If you are looking for A7 paper size in different values such as inches, centimeters, millimeters and pixels, choose from the questions below: