Side-by-Side Comparison
A-Series (ISO 216)
A3 vs. A8
Comparing 2 standards across 8 specifications. 7 key differences identified.
Comparing:
A3
A8
A3 is an ISO 216 standard paper size measuring 297 × 420 mm (11.7 × 16.5 inches), with a surface area of 0.125 square meters (one eighth of A0). It is the standard large-format paper supported by commercial office multifunction printers (MFPs), widely used for financial spreadsheets, two-page A4 magazine spreads, and engineering diagrams.
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)
|
297 × 420 mm | 52 × 74 mm |
|
Width × Height (Imperial)
|
11.7 × 16.5 in | 2.05 × 2.91 in |
|
Nominal Surface Area
|
0.125 m² (125,000 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
|
10.0 grams | 0.3125 grams |
|
Primary Applications
|
Office spreadsheets, folded A4 booklets, ledger accounting, small posters | European calling cards, retail product price swing tags, barcode labels, flash cards |
|
Halving Relationship
|
Cut or folded in half yields 2 sheets / 4 pages of A4 | — |
|
Comparison to ISO 7810 ID-1
|
— | Slightly smaller than credit card size (85.60 × 53.98 mm) |