A3 paper size in different values.
A3 size in different values. The links below give you an overview. You will find the exact numbers for Micrometres (μm), Millimetres (mm), Centimetres (cm), Metres (m), Thou (th), Inches (in), Feet (ft), Yards (yd), Pixels, Pica, Point and HPGL. Click on the link to go to the appropriate size. You can calculate your A paper size in another unit with our calculator.
A3-size in cm, pixels, mm en inches.
The A3 size is a commonly used paper size for posters, flyers and menu cards. The size A3 reflects the size of a single sheet of paper.
There are different standards for the sizes of paper. A3 size is part of the A standard. The A standard is the international standard. The A standard is part of the “A”, “B” and “C” series of paper sizes of the ISO 216. The ISO 216 is the international standard for a sheet of paper. North America and parts of Central and South America use other paper sizes such as “Letter” and “Legal”.
Proportions of the A3 size compared to other sizes.
An A3 has a surface area of 297 x 420 millimetres. In inches, this is 11.69 x 16.54 inches.
With the A series of paper sizes, the next size is twice as large or small. The ratio of the A-standard between the long and short side is 2:1. If you fold a sheet of paper horizontally into two equal pieces, two pieces with the same ratio are created. An A3 is half the size of an A2. When you fold an A3, you have twice an A4.
A sizes in mm and inches.
|4A0||1682 x 2378||66.220 x 93.622|
|2A0||1189 x 1682||46.811 x 66.220|
|A0||841 x 1189||33.110 x 46.811|
|A1||594 x 841||23.386 x 33.110|
|A2||420 x 594||16.535 x 23.386|
|A3||297 x 420||11.693 x 16.535|
|A4||210 x 297||8.268 x 11.693|
|A5||148 x 210||5.827 x 8.268|
|A6||105 x 148||4.134 x 5.827|
|A7||74 x 105||2.913 x 4.134|
|A8||52 x 74||2.047 x 2.913|
|A9||37 x 52||1.457 x 2.047|
|A10||26 x 37||1.024 x 1.457|
ISO standard A, B and C series.
Finally, in addition to the A sizes, the ISO 216 standard includes B and C paper sizes. The B-series paper sizes and the C-series paper sizes are made to cover paper sizes that do not fall under the A-series.
A3-size.com loves paper.
Do you also want to have fun with A3 paper? Then fold an airplane and see how far it flies!