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

B3 vs. B5

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

Comparing:
B3 B3
B5 B5

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.

View full B3 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
B3 B3
B5 B5
Width × Height (Metric)
353 × 500 mm 176 × 250 mm
Width × Height (Imperial)
13.90 × 19.69 in 6.93 × 9.84 in
Nominal Surface Area
0.177 m² (176,775 mm²) 0.044 m² (44,000 mm²)
Geometric Mean Origin
Geometric mean of A2 (420×594 mm) and A3 (297×420 mm) Geometric mean of A4 (210×297 mm) and A5 (148×210 mm)
Weight of 80 gsm Sheet
14.1 grams 3.52 grams
Primary Applications
Newspaper publishing, art drawing pads, digital press proofing sheets Scientific textbooks, academic research journals, luxury stationery (Leuchtturm B5), tablet computer screens
Halving Relationship
Cut in half yields 2 sheets of B4
Japanese JIS B5 Distinction
JIS B5 (182 × 257 mm) is the dominant school notebook size in Japan