# item.guide
Side-by-Side Comparison B-Series (ISO 216)

B0 vs. B5

Comparing 2 standards across 8 specifications. 8 key differences identified.

Comparing:
B0 B0
B5 B5

B0 is the largest standard size in the ISO 216 B-series, measuring exactly 1000 × 1414 mm (39.37 × 55.67 inches) with a surface area of √2 square meters (~1.414 m²). Defined with an exact 1-meter short edge, it is the international standard for giant subway transit advertisements, commercial billboards, and wall cartography.

View full B0 spec sheet →

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.

View full B5 spec sheet →

Specification Comparison Table

8 Parameters
Parameter / Spec
B0 B0
B5 B5
Width × Height (Metric)
1000 × 1414 mm 176 × 250 mm
Width × Height (Imperial)
39.37 × 55.67 in 6.93 × 9.84 in
Nominal Surface Area
1.414 m² (√2 m² — 1,414,000 mm²) 0.044 m² (44,000 mm²)
Geometric Mean Origin
Geometric mean of A0 (841×1189 mm) and 2×A0 (1189×1682 mm) Geometric mean of A4 (210×297 mm) and A5 (148×210 mm)
Weight of 80 gsm Sheet
113.1 grams 3.52 grams
Primary Applications
Subway transit billboard posters, large geographic wall maps, tradeshow backdrop banners Scientific textbooks, academic research journals, luxury stationery (Leuchtturm B5), tablet computer screens
Defining Dimension
Short 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