Side-by-Side Comparison
B-Series (ISO 216)
B3 vs. B7
Comparing 2 standards across 8 specifications. 8 key differences identified.
Comparing:
B3
B7
B3 is an ISO 216 standard paper size measuring 353 × 500 mm (13.90 × 19.69 inches) with a surface area of ~0.177 square meters. With an exact 500 mm long edge, it is standard for tabloid newspaper broadsheets, fine-art pastel drawing pads, and commercial print proofing sheets.
B7 is an ISO 216 standard paper size measuring 88 × 125 mm (3.46 × 4.92 inches). Standardized under ICAO Doc 9303 as the official ID-3 machine-readable travel document format, it is the universal size for all national passport booklets issued worldwide.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Width × Height (Metric)
|
353 × 500 mm | 88 × 125 mm |
|
Width × Height (Imperial)
|
13.90 × 19.69 in | 3.46 × 4.92 in |
|
Nominal Surface Area
|
0.177 m² (176,775 mm²) | 0.011 m² (11,000 mm²) |
|
Geometric Mean Origin
|
Geometric mean of A2 (420×594 mm) and A3 (297×420 mm) | Geometric mean of A6 (105×148 mm) and A7 (74×105 mm) |
|
Weight of 80 gsm Sheet
|
14.1 grams | 0.88 grams |
|
Primary Applications
|
Newspaper publishing, art drawing pads, digital press proofing sheets | International national passports, small pocket memo booklets, specialized medical record booklets |
|
Halving Relationship
|
Cut in half yields 2 sheets of B4 | — |
|
ICAO Travel Document Code
|
— | ID-3 format (Mandated for all electronic e-Passports globally) |