# item.guide
Side-by-Side Comparison A-Series (ISO 216)

A10 vs. A2

Comparing 2 standards across 9 specifications. 8 key differences identified.

Comparing:
A10 A10
A2 A2

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.

View full A10 spec sheet →

A2 is an ISO 216 standard paper size measuring 420 × 594 mm (16.5 × 23.4 inches), with a surface area of 0.250 square meters (one quarter of A0). Providing a balanced medium-large format, it is standard for fine-art photographic prints, architectural site overviews, large wall calendars, and retail window display posters.

View full A2 spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
A10 A10
A2 A2
Width × Height (Metric)
26 × 37 mm 420 × 594 mm
Width × Height (Imperial)
1.02 × 1.46 in 16.5 × 23.4 in
Nominal Surface Area
0.0009765625 m² (1/1024 m² — 962 mm²) 0.250 m² (250,000 mm²)
Exact Aspect Ratio
1 : √2 (1 : 1.4142) 1 : √2 (1 : 1.4142)
Weight of Standard 80 gsm Sheet
0.078 grams 20.0 grams
A4 Imposition Yield
64 individual A10 pieces per single A4 master sheet
Status in ISO 216
The absolute smallest formal size defined in the standard
Halving Relationship
Cut in half yields 2 sheets of A3
Primary Applications
Artistic photographic prints, desk calendars, sales territory charts, school classroom diagrams