Side-by-Side Comparison
A-Series (ISO 216)
A5 vs. A8
Comparing 2 standards across 8 specifications. 7 key differences identified.
Comparing:
A5
A8
A5 is an ISO 216 standard paper size measuring 148 × 210 mm (5.83 × 8.27 inches), created by cutting or folding an A4 sheet in half. It is the dominant global format for commercial spiral notebooks, daily planners, paperback novels, corporate marketing flyers, and restaurant menus.
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)
|
148 × 210 mm | 52 × 74 mm |
|
Width × Height (Imperial)
|
5.83 × 8.27 in | 2.05 × 2.91 in |
|
Nominal Surface Area
|
0.03125 m² (1/32 m² — 31,250 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
|
2.5 grams | 0.3125 grams |
|
Primary Applications
|
Stationery notebooks (Moleskine, Rhodia), marketing flyers, paperback booklets, event programs | European calling cards, retail product price swing tags, barcode labels, flash cards |
|
Halving Relationship
|
Cut in half yields 2 sheets of A6 | — |
|
Comparison to ISO 7810 ID-1
|
— | Slightly smaller than credit card size (85.60 × 53.98 mm) |