Paper Sizes: A Handy Guide Getting your head around paper sizes can be difficult, but with our simple guide, you’ll be sure to know your A4 paper measurements from your 4A0!
A Paper Size Guide
The
ISO 216 refers to the international standardised paper sizes which
have been in operation across the world from the mid twentieth century,
derived from the original German standard. The notable exceptions are
Canada and the USA,which have their own paper size guide in the form of
the North American sizes.
A size chart illustrating the ISO A series and a comparison with
American letter and legal formats. Image Copyrights © Creative-commons –
Paper Sizes
A0 isthe largest of the officially recognised ‘A’
paper sizes, with A8 being the smallest. The paper sizes are doubled as
the number gets smaller i.e. A4 paperis double the size of A5. Most
people would recognise the A4 paper size as thestandard size for a
business letter, or for a domestic printer, and when usingthe ‘A’ paper
size guide, people often use the A4 size as a starting point forwhich to
relate other sizes.
The‘A’ paper sizes are defined by their distinctive proportions,
which sees thelength divided by the width equate to 1.4142: this will be
the case no matter which paper size is measured within the ‘A’ scale.
However, small discrepanciesin sizes are allowed to exist in line with
ISO 216, which vary depending on thesize of the paper. Plus or minus
1.5mm is allowed for dimensions on pages up to150mm, 2mm for dimensions
from 150 to 600mm (the A4 paper size falls into this
category), and 3mmfor dimensions exceeding the higher end of this range.
Moreover, the area of A0will always be 1 square metre, plus or minus
the tolerated dimensions asoutlined above.
Oversized A paper does
exist, but it is not officially recognised in the same way that other
sizes, such as the A4 paper measurement are. These are known as 4A0and 2A0 and draw on the original German DIN 476 standard, and areused for oversized pieces which do not fit into these paper sizes. A paper size calculator
is also a great way to calculate the size paper which is most
appropriate to your printing needs, as often it can be confusing
which will best suit your printing needs, particularly if you already
have a size in mind and need to see how that translates into predefined
paper standards.Moreover, this is a handy tool when converting between
North American and the International Standardised paper sizes.
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