Side-by-Side Comparison
B-Series (ISO 216)
B1 vs. B3
Comparing 2 standards across 8 specifications. 8 key differences identified.
Comparing:
B1
B3
B1 is an ISO 216 standard paper size measuring 707 × 1000 mm (27.83 × 39.37 inches) with a surface area of ~0.707 square meters. Defined with an exact 1-meter long edge, it is the worldwide standard format for theatrical movie posters, museum exhibition graphics, and commercial lithographic press sheets.
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.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Width × Height (Metric)
|
707 × 1000 mm | 353 × 500 mm |
|
Width × Height (Imperial)
|
27.83 × 39.37 in | 13.90 × 19.69 in |
|
Nominal Surface Area
|
0.707 m² (707,100 mm²) | 0.177 m² (176,775 mm²) |
|
Geometric Mean Origin
|
Geometric mean of A0 (841×1189 mm) and A1 (594×841 mm) | Geometric mean of A2 (420×594 mm) and A3 (297×420 mm) |
|
Weight of 80 gsm Sheet
|
56.6 grams | 14.1 grams |
|
Primary Applications
|
Theatrical movie one-sheet posters (international), bus shelter ad kiosks, lithographic print testing | Newspaper publishing, art drawing pads, digital press proofing sheets |
|
Defining Dimension
|
Long edge is exactly 1.000 meter (1000 mm) | — |
|
Halving Relationship
|
— | Cut in half yields 2 sheets of B4 |