A2
A-Series (ISO 216) · 7 specs
Direct Answer
A2 is an ISO 216 standard paper size measuring 420 × 594 mm (16.5 × 23.4 inches), with a surface area of 0.250 square meters (one quarter of A0). Providing a balanced medium-large format, it is standard for fine-art photographic prints, architectural site overviews, large wall calendars, and retail window display posters.
Source: ISO 216:2007 (DIN 476-1) · Last reviewed Aug 28, 2026
Specs
| Width × Height (Metric) | 420 × 594 mm |
| Width × Height (Imperial) | 16.5 × 23.4 in |
| Nominal Surface Area | 0.250 m² (250,000 mm²) |
| Exact Aspect Ratio | 1 : √2 (1 : 1.4142) |
| Weight of Standard 80 gsm Sheet | 20.0 grams |
| Halving Relationship | Cut in half yields 2 sheets of A3 |
| Primary Applications | Artistic photographic prints, desk calendars, sales territory charts, school classroom diagrams |
Graphic Design and Photography
A2 is a standard format for desktop wide-format photographic printers (such as 17-inch sheet-fed fine art printers like the Epson SureColor P800/P900 and Canon imagePROGRAF PRO-1000), offering gallery-grade exhibition display without requiring full industrial roll-fed equipment.
Standard Weight
A sheet of 80 gsm paper in A2 size weighs exactly 20.0 grams, and a sheet of heavy 300 gsm watercolor art stock weighs 75.0 grams.