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

B2 vs. B7

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

Comparing:
B2 B2
B7 B7

B2 is an ISO 216 standard paper size measuring 500 × 707 mm (19.69 × 27.83 inches) with a surface area of ~0.354 square meters. Operating with an exact 500 mm (0.5 meter) short edge, it is the benchmark format for commercial half-size offset printing presses, concert tour posters, and art museum prints.

View full B2 spec sheet →

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.

View full B7 spec sheet →

Specification Comparison Table

8 Parameters
Parameter / Spec
B2 B2
B7 B7
Width × Height (Metric)
500 × 707 mm 88 × 125 mm
Width × Height (Imperial)
19.69 × 27.83 in 3.46 × 4.92 in
Nominal Surface Area
0.354 m² (353,550 mm²) 0.011 m² (11,000 mm²)
Geometric Mean Origin
Geometric mean of A1 (594×841 mm) and A2 (420×594 mm) Geometric mean of A6 (105×148 mm) and A7 (74×105 mm)
Weight of 80 gsm Sheet
28.3 grams 0.88 grams
Primary Applications
Concert posters, retail promotional signs, commercial packaging mockups International national passports, small pocket memo booklets, specialized medical record booklets
Defining Dimension
Short edge is exactly 500 mm (0.5 meter)
ICAO Travel Document Code
ID-3 format (Mandated for all electronic e-Passports globally)