A standard sheet of paper size varies depending on the type, but the most common size worldwide is the A4 sheet.
A4 Paper Size
- Dimensions: 210 mm by 297 mm (21.0 cm by 29.7 cm)
- Dimensions in inches: approximately 8.3 inches by 11.7 inches
Other Paper Size Examples (A Series)
- A0: 841 mm × 1189 mm (33.1 × 46.8 inches)
- A1: 594 mm × 841 mm (23.4 × 33.1 inches)
- A2: 420 mm × 594 mm (16.5 × 23.4 inches)
- A3: 297 mm × 420 mm (11.7 × 16.5 inches)
- A5: 148 mm × 210 mm (5.8 × 8.3 inches)
The sizes in the A series relate to each other by a factor of 2, where each size is half the area of the previous larger size, maintaining the same aspect ratio of approximately √2:1.
In the United States and Canada, a common size is the Letter size, which measures 8.5 by 11 inches (approximately 216 mm × 279 mm), similar in use to A4 but differing slightly in dimensions.
