Paper sizes
ISO
International ISO paper and envelope standards including A, B, C, RA and SRA.
ISO A series
ISO A series (A0–A10) used worldwide for documents and printing.
ISO B series
ISO B series used for posters, envelopes and special formats.
ISO C series
ISO C series designed primarily for envelopes to fit A sizes.
RA
RAW sizes (RA) with extra bleed for printing.
SRA
Supplementary RA (SRA) sizes with additional margins.
International envelopes
International envelope sizes matching ISO paper.
North America
US and related formats used in North America and legacy imperial sizes.
US paper
Common North American sizes such as Letter, Legal and Tabloid.
US envelopes
US envelope sizes like #10 and catalog formats.
Imperial
Traditional imperial sizes historically used in the UK.
Traditional British
Legacy British book and printing formats.
Transitional
Transitional formats bridging historical and modern sizes.
Canadian
Canadian variants of North American paper sizes.
Asia
Common formats from Asian standards such as Japanese and Chinese series.
Media & Use
Sizes by use cases including business cards, books, newspapers, posters, photo prints and ID/passport photos.
Business card
Business card sizes by region and standard.
Books
Common book trim sizes used in publishing.
Newspaper
Newspaper broadsheet, tabloid and related formats.
Billboard
Large-format outdoor advertising sizes.
Picture frame
Common picture frame and photo print sizes.
Poster
Common standard poster formats and their sizes used for display and advertising.
Photo sizes
Common consumer photo print sizes such as 4×6, 5×7, 8×10 and more.
ID & passport photos
Common ID and passport photo sizes used by different countries and authorities.
Note/Index card
Common note/index card sizes like 3×5, 4×6, 5×8.
Cards
Common card sizes: postcards, bank/credit cards, playing and trading cards.