Product details
A3 paper measures 297 x 420 mm (
11.7×16.511.7 cross 16.5
11.7×16.5
inches), adhering to the ISO 216 standard. It is precisely twice the size of A4 and half the size of A2, making it ideal for posters, charts, spreadsheets, and technical drawings. Commonly used in inkjet and laser printers, it is available in various GSM weights for printing and design work.
Key Details About A3 Paper
- Dimensions:
297×420 mm297 cross 420 mm
297×420 mm
|
29.7×42 cm29.7 cross 42 cm29.7×42 cm
|
11.7×16.5 inches11.7 cross 16.5 inches11.7×16.5 inches
.
- Area:
0.125 m20.125 m squared
0.125 m2
or
1250 cm21250 cm squared1250 cm2
.
- Context: It is part of the A-series, designed to maintain a
1∶21 colon the square root of 2 end-root
1∶2√
aspect ratio.
- Common Uses: Posters, menus, large spreadsheets, schematics, and leaflets.
- Comparisons: 2 x A4 sheets equal 1 A3 sheet.
Pixel Dimensions for Printing
- 72 DPI:
842×1191842 cross 1191
842×1191
pixels
- 300 DPI:
3508×49603508 cross 4960
3508×4960
pixels
For specialized, larger, edge-to-edge printing, “A3 Plus” (approx.
329×483 mm329 cross 483 mm
329×483 mm
) is sometimes used, though it is not an official ISO standard.
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