ANSI C Paper Size

ANSI C is a size format in the standard ANSI / ASME Y14.1 adopted by The American National Standards Institute, which is very similar to the ISO standard. If you cut the paper in half, it will produce two next smaller size pieces of paper. The most common size in this series is ANSI A, Also known as 'Letter'. The width of the ANSI C paper is 432mm(17 inches) and the height is 559mm(22 inches).

Format/name	ANSI C
Width(mm)	432 mm
Width(in)	17 inches
Height(mm)	559 mm
Height(in)	22 inches

Taking our commonly used credit cards as a reference, the size of the credit card is 85.6 mm x 53.98 mm (3.4 in X 2.1 in). The paper size of ANSI C format is approximately 5 times the width of the credit card and approximately 10.4 times the height of the credit card.

US Common Paper Size

American loose sizes

North America, including the United States, Canada, and Mexico, is not applicable to ISO 216 international standard paper size, but has its own common paper size, as shown in the following table.

Format	Width × Height (mm)	Width × Height (cm)	Width × Height (in)
Half Letter	140 × 216 mm	14 × 21.6 cm	5.5 × 8.5 in
Letter	216 × 279 mm	21.6 × 27.9 cm	8.5 × 11 in
Legal	216 × 356 mm	21.6 × 35.6 cm	8.5 × 14 in
Tabloid	279 × 432 mm	27.9 × 43.2 cm	11 × 17 in
Ledger	432 × 279 mm	43.2 × 27.9 mm	17 × 11 in
Junior Legal	127 × 203 mm	12.7 × 20.3 cm	5 × 8 in
Government Letter	203 × 267 mm	20.3 × 26.7 cm	8 × 10.5 in
Government Legal	216 × 330 mm	21.6 × 33 cm	8.5 × 13 in

ANSI Standard Paper Sizes

In 1992, ANSI / ASME Y14.1 adopted by the National Standard Association, De Facto Standard 8 ¹/₂ in × 11 in "Letter", defined a series of paper sizes, and named "ANSI A", The series of paper sizes and ISO 216 international standards are similar, which will be cut into two halves will generate two next smaller sized paper.

Format	Width × Height (mm)	Width × Height (cm)	Width × Height (in)
ANSI A	216 × 279 mm	21.6 × 27.9 cm	8.5 × 11 in
ANSI B	279 × 432 mm	27.9 × 43.2 cm	11 × 17 in
ANSI C	432 × 559 mm	43.2 × 55.9 cm	17 × 22 in
ANSI D	559 × 864 mm	55.9 × 86.4 cm	22 × 34 in
ANSI E	864 × 1118 mm	86.4 × 111.8 mm	34 × 44 in

Architectural Paper Sizes

In the ANSI / ASME Y14.1 standard adopted by the National Standards Association, a series of paper sizes for architectural purposes are also defined. The size of this series is mainly used by architects, because the paper in this series is 4: 3 and 3: 2, this is the ratio of small integers.

Format	Width × Height (mm)	Width × Height (cm)	Width × Height (in)
Arch A	229 × 305 mm	22.9 × 30.5 cm	9 × 12 in
Arch B	305 × 457 mm	30.5 × 45.7 cm	12 × 18 in
Arch C	457 × 610 mm	45.7 × 61 cm	18 × 24 in
Arch D	610 × 914 mm	61 × 91.4 cm	24 × 36 in
Arch E	914 × 1219 mm	91.4 × 121.9 cm	36 × 48 in
Arch E1	762 × 1067 mm	76.2 × 106.7 cm	30 × 42 in
Arch E2	660 × 965 mm	66 × 96.5 cm	26 × 38 in
Arch E3	686 × 991 mm	68.6 × 99.1 cm	27 × 39 in