Side-by-Side Comparison
A-Series (ISO 216)
A1 vs. A5
Comparing 2 standards across 7 specifications. 6 key differences identified.
Comparing:
A1
A5
A1 is an ISO 216 standard paper size measuring 594 × 841 mm (23.4 × 33.1 inches), with an exact surface area of 0.500 square meters (half of A0). It is the premier standard format for architectural blueprints, structural engineering drawings, municipal planning maps, and large-format flipcharts.
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.
Specification Comparison Table
7 Parameters| Parameter / Spec | ||
|---|---|---|
|
Width × Height (Metric)
|
594 × 841 mm | 148 × 210 mm |
|
Width × Height (Imperial)
|
23.4 × 33.1 in | 5.83 × 8.27 in |
|
Nominal Surface Area
|
0.500 m² (500,000 mm²) | 0.03125 m² (1/32 m² — 31,250 mm²) |
|
Exact Aspect Ratio
|
1 : √2 (1 : 1.4142) | 1 : √2 (1 : 1.4142) |
|
Weight of Standard 80 gsm Sheet
|
40.0 grams | 2.5 grams |
|
Halving Relationship
|
Cut in half yields 2 sheets of A2 | Cut in half yields 2 sheets of A6 |
|
Primary Applications
|
Architectural blueprints, conference presentation boards, large flipcharts, theatrical event posters | Stationery notebooks (Moleskine, Rhodia), marketing flyers, paperback booklets, event programs |