Side-by-Side Comparison
A-Series (ISO 216)
A7 vs. A9
Comparing 2 standards across 8 specifications. 7 key differences identified.
Comparing:
A7
A9
A7 is an ISO 216 standard paper size measuring 74 × 105 mm (2.91 × 4.13 inches), with a surface area of 1/128 square meter. Created by cutting an A6 sheet in half, it is widely utilized for pocket memo pads, medical prescription slips, event tickets, and promotional product tags.
A9 is an ISO 216 standard paper size measuring 37 × 52 mm (1.46 × 2.05 inches), with a surface area of 1/512 square meter. Created by cutting an A8 sheet in half, it is standard for miniature barcode labels, commemorative postage stamps, bookkeeper index tabs, and food expiration stickers.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Width × Height (Metric)
|
74 × 105 mm | 37 × 52 mm |
|
Width × Height (Imperial)
|
2.91 × 4.13 in | 1.46 × 2.05 in |
|
Nominal Surface Area
|
0.0078125 m² (1/128 m² — 7,770 mm²) | 0.001953125 m² (1/512 m² — 1,924 mm²) |
|
Exact Aspect Ratio
|
1 : √2 (1 : 1.4142) | 1 : √2 (1 : 1.4142) |
|
Weight of Standard 80 gsm Sheet
|
0.625 grams | 0.156 grams |
|
Primary Applications
|
Pocket sticky note pads, pharmacy prescription slips, event passes, luggage tags | Postage stamps, small jar adhesive labels, index divider tabs, coupon tokens |
|
Halving Relationship
|
Cut in half yields 2 sheets of A8 | — |
|
A4 Imposition Yield
|
— | 32 individual A9 pieces per single A4 master sheet |