Paper Size

Overview#

Paper Size

The ISO standard paper sizes are not commonly used in the United States and Canada.

Instead paper formats like

are widely used. The "Letter", "Legal", "Tabloid", and other formats (although not by these names) are defined in the American National Standard ANSI X3.151.
US Imperial paperAliasANSImminchesRatioSimilar ISOISO mmISO Ratio
Photo 4 x 6 102 x 1524 x 6
Index Card 5 x 8 127 x 2035 x 8
Half LetterHalf Sheet 139.7 x 215.95 1/2 x 8 1/2
ExecutiveExecutive 184.2 x 266.77 x 10
U.S. Government 203 x 2678 x 10 1/2
Folio, F4//Foolscap EFolio 210 x 3308 x 13
Letter, US A ANSI A215.9 x 279.48 1/2 x 1122⁄17 = 1.2941A4297 × 2101.414
LegalLegal 215.9 x 355.68 1/2 x 14
LedgerTabloidANSI B279.4 x 431.811 x 1717⁄11 = 1.5455A3297 × 4201.414
ANSI C17 × 22432 × 559​22⁄17 = 1.2941A2420 × 5941.414
ANSI D558.8 x 863.622 x 3417⁄11 = 1.5455A1594 × 8411.414
ANSI E863.6 x 1117.634 x 44
ANSI F28 × 40711 × 1016​10⁄7 = 1.4286A0841 × 11891.414
ANSI G11 × 22.5–90279 × 572–2286N/AN/AN/AN/A
ANSI H28 × 44–143711 × 1118–3632N/AN/AN/AN/A
ANSI J34 × 55–176864 × 1397–4470N/AN/AN/AN/A
ANSI K40 × 55–1431016 × 1397–3632N/AN/AN/AN/A

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