Side-by-Side Comparison
A-Series (ISO 216)
A3 vs. A7
Comparing 2 standards across 7 specifications. 6 key differences identified.
Comparing:
A3
A7
A3 is an ISO 216 standard paper size measuring 297 × 420 mm (11.7 × 16.5 inches), with a surface area of 0.125 square meters (one eighth of A0). It is the standard large-format paper supported by commercial office multifunction printers (MFPs), widely used for financial spreadsheets, two-page A4 magazine spreads, and engineering diagrams.
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.
Specification Comparison Table
7 Parameters| Parameter / Spec | ||
|---|---|---|
|
Width × Height (Metric)
|
297 × 420 mm | 74 × 105 mm |
|
Width × Height (Imperial)
|
11.7 × 16.5 in | 2.91 × 4.13 in |
|
Nominal Surface Area
|
0.125 m² (125,000 mm²) | 0.0078125 m² (1/128 m² — 7,770 mm²) |
|
Exact Aspect Ratio
|
1 : √2 (1 : 1.4142) | 1 : √2 (1 : 1.4142) |
|
Weight of Standard 80 gsm Sheet
|
10.0 grams | 0.625 grams |
|
Halving Relationship
|
Cut or folded in half yields 2 sheets / 4 pages of A4 | Cut in half yields 2 sheets of A8 |
|
Primary Applications
|
Office spreadsheets, folded A4 booklets, ledger accounting, small posters | Pocket sticky note pads, pharmacy prescription slips, event passes, luggage tags |