Side-by-Side Comparison
A-Series (ISO 216)
A10 vs. A9
Comparing 2 standards across 8 specifications. 7 key differences identified.
Comparing:
A10
A9
A10 is the smallest standardized paper size defined under ISO 216, measuring 26 × 37 mm (1.02 × 1.46 inches) with a surface area of 1/1024 square meter. It is standard for admission raffle ticket stubs, micro coupons, small security inspection stamps, and dental sample labels.
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)
|
26 × 37 mm | 37 × 52 mm |
|
Width × Height (Imperial)
|
1.02 × 1.46 in | 1.46 × 2.05 in |
|
Nominal Surface Area
|
0.0009765625 m² (1/1024 m² — 962 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
|
0.078 grams | 0.156 grams |
|
A4 Imposition Yield
|
64 individual A10 pieces per single A4 master sheet | 32 individual A9 pieces per single A4 master sheet |
|
Status in ISO 216
|
The absolute smallest formal size defined in the standard | — |
|
Primary Applications
|
— | Postage stamps, small jar adhesive labels, index divider tabs, coupon tokens |