There are a number of paper size standards used in the world today, the most commonly used being the international ISO standard and a standard used in North America. These sizes are used to order various printed items such as stationery, brochures, digital copies, fliers, etc. The charts below detail and compare these sizes and their dimensions.
Paper Sizes (Metric A, B, North American ARCH)

ANSI paper sizes illustrationN. American ANSI Sizes
8.5 in. x 11 in.
(215.9 mm x 279.4 mm)

11 in. x 17 in.
(279.4 mm x 431.8 mm)

17 in. x 22 in.
(432 mm x 559 mm)

22 in. x 34 in.
(559 mm x 864 mm)

34 in. x 44 in.
(1118 mm x 864 mm)

North American Architectural paper sizes illustrationN. American ARCH Sizes
Arch A
9 in. x 12 in.
(229 mm x 305 mm)

Arch B:
12 in. x 18 in.
(305 mm x 457 mm)

Arch C:
18 in. x 24 in.
(457 mm x 610 mm)

Arch D:
24 in. x 36 in.
(610 mm x 914 mm)

Arch E:
36 in. x 48 in.
(1914 mm x 1219 mm)

North America

Business Card3.5 in.2 in.85.6 mm53.98 mm
Executive7.5 in.10 in.190.5 mm254 mm
Jr. Legal8 in.5 in.203.2 mm127 mm
Letter/ANSI A8.5 in.11 in.215.9 mm279.4 mm
Legal8.5 in.14 in.215.9 mm355.6 mm
Ledger/Tabloid/ANSI B11 in.17 in.279.4 mm431.8 mm
ANSI C17 in.22 in.432 mm559 mm
ANSI D22 in.34 in.559 mm864 mm
ANSI E34 in.44 in.864 mm1118 mm
Arch A9 in.12 in.229 mm305 mm
Arch B12 in.18 in.305 mm457 mm
Arch C18 in.24 in.457 mm610 mm
Arch D24 in.36 in.610 mm914 mm
Arch E36 in.48 in.1914 mm1219 mm
Arch E130 in.42 in.762 mm1067 mm
Arch E226 in.38 in.660 mm965 mm
Arch E327 in.39 in.686 mm991 mm