US Paper Sizes

US Paper Size in cm, inches

The United States is using a different paper size system compare to the rest of the world. They have different sizes standard sizes. The US Letter paper size is the most popular size used throughout the US. It is used in Canada and Philippines also.

Letter, Legal, Ledger and Tabloid are most commonly used for everyday activities. In 1996, the American National Standards Institute adopted ANSI/ASME Y14.1 which defined a regular series of paper sizes based upon the de facto standard 8 1⁄2 in × 11 in (216 mm × 279 mm) Letter size which it assigned "ANSI A", intended for technical drawings, hence sometimes labeled "Engineering". This series is somewhat similar to the ISO standard in that cutting a sheet in half would produce two sheets of the next smaller size and therefore also includes Ledger/Tabloid as "ANSI B".

The ARCH series of paper sizes is defined in the ANSI/ASME Y14.1 standard. The ARCH sizes are commonly used by architects for their large format drawings. The ARCH series preferred by North American architects instead of ANSI because the aspect ratios (4:3 and 3:2) are ratios of small integers. Furthermore, the aspect ratio 4:3 matches the traditional aspect ratio for computer displays.

US Paper Sizes
Size Millimeters Inches
Letter size 216 x 279 mm 8.5 x 11 in
Legal size 216 x 356 mm 8.5 x 14 in
Tabloid size 279 x 432 mm 11 x 17 in
Ledger size 432 x 279 mm 17 x 11 in
Junior Legal size 127 x 203 mm 5 x 8 in
Half Letter size 140 x 216 mm 5.5 x 8.5 in
Government Letter size 203 x 267 mm 8 x 10.5 in
Government Legal size 216 x 330 mm 8.5 x 13 in
ANSI A size 216 x 279 mm 8.5 x 11 in
ANSI B size 279 x 432 mm 11 x 17 in
ANSI C size 432 x 559 mm 17 x 22 in
ANSI D size 559 x 864 mm 22 x 34 in
ANSI E size 864 x 1118 mm 34 x 44 in
Arch A size 229 x 305 mm 9 x 12 in
Arch B size 305 x 457 mm 12 x 18 in
Arch C size 457 x 610 mm 18 x 24 in
Arch D size 610 x 914 mm 24 x 36 in
Arch E size 914 x 1219 mm 36 x 48 in
Arch E1 size 762 x 1067 mm 30 x 42 in
Arch E2 size 660 x 965 mm 26 x 38 in
Arch E3 size 686 x 991 mm 27 x 39 in