Side-by-Side Comparison
A-Series (ISO 216)
A0 vs. A8
Comparing 2 standards across 8 specifications. 8 key differences identified.
Comparing:
A0
A8
A0 is the base unit of the ISO 216 international paper standard, defined with an exact surface area of 1 square meter (1.000 m²) and dimensions of 841 × 1189 mm (33.1 × 46.8 inches). Operating on the 1:√2 Lichtenberg aspect ratio, it is the global standard for large architectural CAD plots, engineering schematics, and academic conference poster presentations.
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)
|
841 × 1189 mm | 52 × 74 mm |
|
Width × Height (Imperial)
|
33.1 × 46.8 in | 2.05 × 2.91 in |
|
Nominal Surface Area
|
1.000 m² (1,000,000 mm²) | 0.00390625 m² (1/256 m² — 3,848 mm²) |
|
Exact Aspect Ratio
|
1 : √2 (1 : 1.4142 — Lichtenberg ratio) | 1 : √2 (1 : 1.4142) |
|
Weight of Standard 80 gsm Sheet
|
80.0 grams exactly | 0.3125 grams |
|
Primary Applications
|
Architectural blueprints, GIS cartography, technical CAD schematics, academic research posters | European calling cards, retail product price swing tags, barcode labels, flash cards |
|
Halving Relationship
|
Cut in half across length yields 2 sheets of A1 | — |
|
Comparison to ISO 7810 ID-1
|
— | Slightly smaller than credit card size (85.60 × 53.98 mm) |