Side-by-Side Comparison
A-Series (ISO 216)
A2 vs. A8
Comparing 2 standards across 8 specifications. 7 key differences identified.
Comparing:
A2
A8
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.
A8 is an ISO 216 standard paper size measuring 52 × 74 mm (2.05 × 2.91 inches), with a surface area of 1/256 square meter. Approximately matching the footprint of standard bank payment cards, it is standard for European business cards, loyalty stamps, retail price tags, and transit ticket stubs.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Width × Height (Metric)
|
420 × 594 mm | 52 × 74 mm |
|
Width × Height (Imperial)
|
16.5 × 23.4 in | 2.05 × 2.91 in |
|
Nominal Surface Area
|
0.250 m² (250,000 mm²) | 0.00390625 m² (1/256 m² — 3,848 mm²) |
|
Exact Aspect Ratio
|
1 : √2 (1 : 1.4142) | 1 : √2 (1 : 1.4142) |
|
Weight of Standard 80 gsm Sheet
|
20.0 grams | 0.3125 grams |
|
Primary Applications
|
Artistic photographic prints, desk calendars, sales territory charts, school classroom diagrams | European calling cards, retail product price swing tags, barcode labels, flash cards |
|
Halving Relationship
|
Cut in half yields 2 sheets of A3 | — |
|
Comparison to ISO 7810 ID-1
|
— | Slightly smaller than credit card size (85.60 × 53.98 mm) |