B6

The B6 paper size is part of the ISO B series used for printing, stationery, and specialized technical documents. With compact dimensions of 125 x 176 mm, B6 provides an efficient small format optimized for portability. It retains the characteristic height-to-width ratio of 1:√2 (approximately 1:1.4142) that enables consistent scaling across the B system.

With a surface area of 0.02 square meters, B6 offers a space-saving print area. Its petite size lends well to notebooks, pocket guides, charts, smart handouts, and specialized prints requiring maximum portability. The origins of B6 date back to the German DIN 476 standard from 1922 before being adopted as an ISO standard in 1975. Today, B6 is ideal for personal organizers, field manuals, precise technical documents, and other niche printing applications needing a tiny but mighty format. Its compact efficiency makes B6 stand out from standard office and paper sizes.