A0 841 x 1189 mm A1 594 x 841 mm A2 420 x 594 mm A3 297 x 420 mm A4 210 x 297 mm A5 148 x 210 mm A6 105 x 148 mm

A3 paper size measurements are 297 mm x 420 mm, 29.7 cm x 42 cm or 11.7 in x 16.5 in. Its printing surface is large enough for everyday use at 0.125 m² or 1250 cm².

A3 paper size is 11.69 × 16.54 inches (297 × 420 mm / 29.7 × 42 cm). Get exact A3 dimensions for printing, design, and more.

A3 is a paper size that is typically used for drawings, diagrams and large tables. It is also frequently used in laser printers to output two A4 pages as a spread.

A3 paper is a larger format within the ISO 216 paper size standard, measuring 297 millimeters by 420 millimeters (11.7 inches by 16.5 inches). Its dimensions offer significantly more space compared to …

A3 is exactly half the size of A2 and twice the size of A4. This proportional relationship makes it easy to scale designs or fold the paper without altering the aspect ratio.

Dimensions A3 size measures exactly 11.69″ x 16.54″ in inches, 297 x 420 in mm, or 29.7 x 42.0 in cm. This size is half the dimensions of A2 when folded or cut, following the same halving principle of the …

Jan 18, 2026 · A3 dimensions refer to the ISO paper size in the A-series, a type of paper size that measures 297 by 420 millimeters. It is larger than A4 and is commonly used for posters, diagrams, …

A3 is a popular paper size used for posters, menus, charts and presentation materials. It is part of the international ISO A-series paper system and offers a larger surface area than standard office paper, …

The Area of the A3 paper size is 124,740 mm² or 193.05 in² with a perimeter of 1,434 mm or 56.40 in. An A3 format has a diagonal length of 514.40 mm or 20.23 in.