Side-by-Side Comparison
B-Series (ISO 216)
B1 vs. B5
Comparing 2 standards across 8 specifications. 8 key differences identified.
Comparing:
B1
B5
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.
B5 is an ISO 216 standard paper size measuring 176 × 250 mm (6.93 × 9.84 inches). Sized perfectly between A4 and A5, it is the premier international standard for published books, university academic textbooks, scientific journals, and luxury stationery notebooks.
Specification Comparison Table
8 Parameters| Parameter / Spec | ||
|---|---|---|
|
Width × Height (Metric)
|
707 × 1000 mm | 176 × 250 mm |
|
Width × Height (Imperial)
|
27.83 × 39.37 in | 6.93 × 9.84 in |
|
Nominal Surface Area
|
0.707 m² (707,100 mm²) | 0.044 m² (44,000 mm²) |
|
Geometric Mean Origin
|
Geometric mean of A0 (841×1189 mm) and A1 (594×841 mm) | Geometric mean of A4 (210×297 mm) and A5 (148×210 mm) |
|
Weight of 80 gsm Sheet
|
56.6 grams | 3.52 grams |
|
Primary Applications
|
Theatrical movie one-sheet posters (international), bus shelter ad kiosks, lithographic print testing | Scientific textbooks, academic research journals, luxury stationery (Leuchtturm B5), tablet computer screens |
|
Defining Dimension
|
Long edge is exactly 1.000 meter (1000 mm) | — |
|
Japanese JIS B5 Distinction
|
— | JIS B5 (182 × 257 mm) is the dominant school notebook size in Japan |