What Are the Dimensions of ISO C3 Paper Size?

Learn the exact measurements of ISO C3 paper (324 x 458 mm) and its common uses for packaging A3 documents and larger envelopes.

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ISO C3 paper measures 324 mm x 458 mm (approximately 12.8 inches x 18.0 inches). It's primarily used for packaging A3 documents or for creating larger envelopes. This size ensures that documents are well-protected and professionally presented.

FAQs & Answers

  1. What is the difference between ISO C3 and A3 paper sizes? ISO C3 paper measures 324 mm x 458 mm and is designed to fit A3 documents, which measure 297 mm x 420 mm, making C3 slightly larger for packaging and envelopes.
  2. What are the common uses of ISO C3 paper size? ISO C3 paper is primarily used for creating larger envelopes and packaging to protect and professionally present A3 size documents.
  3. How does ISO C3 size relate to other ISO paper sizes? ISO C series paper sizes are designed for envelopes that fit the corresponding A-series paper sizes. The C3 size fits A3 documents as a protective envelope size.

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For more information on paper sizes and their practical applications, check out our guides on ISO A-series and B-series paper dimensions, as well as tips for selecting the right envelope sizes for different documents.

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