Look up exact millimeter dimensions for D0 to D6 series paper based on the GB/T 19999-2003 national standard, suitable for book, magazine, and office paper design.
No data available. Please add paper size data in tool configuration.

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Are you tired of constantly searching for or making mistakes with exact Chinese standard paper sizes during design and printing? This tool provides a lookup chart for D-series paper sizes defined by the Chinese national standard GB/T 19999-2003. The D-series is a paper specification system unique to China. Starting with D0 (full sheet) as the base size, it is folded in half sequentially to produce the D1 (folio), D2 (quarto/4mo), D3 (octavo/8mo) series, and so on. Its dimensional relationships are based on the modular requirements of printing and binding, rather than the internationally common √2 ratio. This tool directly outputs the exact millimeter (width × height) values for each specification from D0 to D6, helping you quickly obtain standard data for typesetting, design, printing, and purchasing.
This tool provides the finished (net) sizes specified by the national standard. During actual printing and production, be sure to include a bleed margin (usually 3 mm on each side) as required by the printing plant. The table data applies to standard situations. For special binding methods (such as saddle stitching or perfect binding) or specialty papers, it is recommended to confirm the final trim size with your printing service provider. The data references GB/T 19999-2003; if industry standards are updated, please refer to the latest official documents.
When designing book covers or brochures, in addition to looking up the D-series size for the inner pages, note that the cover size is usually slightly larger than the inner pages (known as the "overhang" or "lip"). For example, the cover size of a 16mo (D4) book typically needs an additional 1-3 mm on each side beyond the 188×260 mm base. Furthermore, D-series sizes represent the "book format" (mo) concept, which directly corresponds to the "full sheet" and "folio" specifications of printing presses. Understanding this helps achieve the most economical paper utilization during imposition. Typical input/output example: Look up "D3 (8mo)", and the output is "380×528 mm".