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TOML

Paper Size Standards - TOML

Paper size standards are a system of specifications that define the dimensions of paper used for documents and printed materials. Internationally, the ISO 216 standard (A series, B series, C series) is widely adopted, and in Japan, domestic standards are established as JIS P 0138. These standards are based on an aspect ratio of 1:√2 (approximately 1:1.414), featuring the characteristic of being able to be cut in half while maintaining the same proportions. North America uses unique standards such as Letter, Legal, and Tabloid sizes.

paper size ISO 216 JIS standard A series B series printing stationery standard 
[[items]]
code = "A0"
slug = "a0"
name = "A0"
description = "Base size of A series. Area is approximately 1 square meter."
dimensions_inch = "33.11 × 46.81"
dimensions_mm = "841 × 1189"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A1"
slug = "a1"
name = "A1"
description = "Half the size of A0. Used for advertising posters and displays."
dimensions_inch = "23.39 × 33.11"
dimensions_mm = "594 × 841"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A2"
slug = "a2"
name = "A2"
description = "Half the size of A1. Used for wall calendars and posters."
dimensions_inch = "16.54 × 23.39"
dimensions_mm = "420 × 594"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A3"
slug = "a3"
name = "A3"
description = "Half the size of A2. Used for restaurant menus and flyers."
dimensions_inch = "11.69 × 16.54"
dimensions_mm = "297 × 420"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A4"
slug = "a4"
name = "A4"
description = "The most common paper size. Standard for copy paper and office documents."
dimensions_inch = "8.27 × 11.69"
dimensions_mm = "210 × 297"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A5"
slug = "a5"
name = "A5"
description = "Half the size of A4. Used for specialized books and business notebooks."
dimensions_inch = "5.83 × 8.27"
dimensions_mm = "148 × 210"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A6"
slug = "a6"
name = "A6"
description = "Half the size of A5. Used for paperbacks and postcards."
dimensions_inch = "4.13 × 5.83"
dimensions_mm = "105 × 148"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A7"
slug = "a7"
name = "A7"
description = "Half the size of A6. Used for business cards and index cards."
dimensions_inch = "2.91 × 4.13"
dimensions_mm = "74 × 105"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A8"
slug = "a8"
name = "A8"
description = "Half the size of A7. Used for small cards and labels."
dimensions_inch = "2.05 × 2.91"
dimensions_mm = "52 × 74"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A9"
slug = "a9"
name = "A9"
description = "Half the size of A8. Used for small labels and tags."
dimensions_inch = "1.46 × 2.05"
dimensions_mm = "37 × 52"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "A10"
slug = "a10"
name = "A10"
description = "Half the size of A9. Used for tiny labels and tags."
dimensions_inch = "1.02 × 1.46"
dimensions_mm = "26 × 37"
series = "A"
standard = "ISO 216 / JIS P 0138"

[[items]]
code = "B0"
slug = "b0"
name = "B0"
description = "Base size of B series. Area is approximately 1.5 square meters."
dimensions_inch = "40.55 × 57.32"
dimensions_mm = "1030 × 1456"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B1"
slug = "b1"
name = "B1"
description = "Half the size of B0. Used for station posters."
dimensions_inch = "28.66 × 40.55"
dimensions_mm = "728 × 1030"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B2"
slug = "b2"
name = "B2"
description = "Half the size of B1. Used for advertising posters and displays."
dimensions_inch = "20.28 × 28.66"
dimensions_mm = "515 × 728"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B3"
slug = "b3"
name = "B3"
description = "Half the size of B2. Used for train hanging advertisements."
dimensions_inch = "14.33 × 20.28"
dimensions_mm = "364 × 515"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B4"
slug = "b4"
name = "B4"
description = "Half the size of B3. Used for newspaper insert flyers and manuscript paper."
dimensions_inch = "10.12 × 14.33"
dimensions_mm = "257 × 364"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B5"
slug = "b5"
name = "B5"
description = "Half the size of B4. Used for university notebooks and weekly manga magazines."
dimensions_inch = "7.17 × 10.12"
dimensions_mm = "182 × 257"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B6"
slug = "b6"
name = "B6"
description = "Half the size of B5. Used for hardcover books and planners."
dimensions_inch = "5.04 × 7.17"
dimensions_mm = "128 × 182"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B7"
slug = "b7"
name = "B7"
description = "Half the size of B6. Passport size."
dimensions_inch = "3.58 × 5.04"
dimensions_mm = "91 × 128"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B8"
slug = "b8"
name = "B8"
description = "Half the size of B7. Playing card size."
dimensions_inch = "2.52 × 3.58"
dimensions_mm = "64 × 91"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B9"
slug = "b9"
name = "B9"
description = "Half the size of B8. Used for small labels."
dimensions_inch = "1.77 × 2.52"
dimensions_mm = "45 × 64"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "B10"
slug = "b10"
name = "B10"
description = "Half the size of B9. Used for tiny labels and stamps."
dimensions_inch = "1.26 × 1.77"
dimensions_mm = "32 × 45"
series = "B"
standard = "JIS P 0138"

[[items]]
code = "Letter"
slug = "us-letter"
name = "Letter"
description = "The most common paper size in North America."
dimensions_inch = "8.5 × 11"
dimensions_mm = "216 × 279"
series = "US"
standard = "ANSI/ASME Y14.1"

[[items]]
code = "Legal"
slug = "us-legal"
name = "Legal"
description = "Paper size for legal documents used in North America."
dimensions_inch = "8.5 × 14"
dimensions_mm = "216 × 356"
series = "US"
standard = "Traditional US"

[[items]]
code = "Tabloid"
slug = "us-tabloid"
name = "Tabloid"
description = "Large format paper size used in North America."
dimensions_inch = "11 × 17"
dimensions_mm = "279 × 432"
series = "US"
standard = "ANSI/ASME Y14.1"