Paper Sizes

Our paper sizes are based on the ISO216 international paper size standard. This standard is based on each size being half of the size of the previous one, when folded parallel to the shorter lengths. Our handy paper size guide will give you all the information you need on popular paper sizes from the UK and Europe.

A sheet of 80gsm A4 paper
weighs approx 5 grams

"A" Paper Sizes

The dimensions of all "A size" paper are defined by the ISO216 international paper size standard. "A" series paper has been widely used in the UK and Europe for over 200 years. The most typical sizes for finished printed documents are A3, A4, A5 an A6. Cutting an A4 in half, will create two A5 sheets, and so forth. Any size of brochure can be made using paper from the next larger size, for example A3 sheets are folded to make A4 brochures.

Did you know? A0 paper has an area of exactly 1m²? 🤯
A Paper Sizes
Format Width × Height (mm) Width × Height (in)
A0 841 × 1189 mm 33.1 × 46.8 in
A1 594 × 841 mm 23.4 × 33.1 in
A2 420 × 594 mm 16.5 × 23.4 in
A3 297 × 420 mm 11.7 × 16.5 in
A4 210 × 297 mm 8.3 × 11.7 in
A5 148 × 210 mm 5.8 × 8.3 in
A6 105 × 148 mm 4.1 × 5.8 in
A7 74 × 105 mm 2.9 × 4.1 in
A8 52 × 74 mm 2 × 2.9 in

"B" Paper Sizes

The dimensions of all "B size" paper are defined by the ISO216 international paper size standard. The area of the B series paper sheets is the geometric mean of the A series sheets. For example, B1 is between A0 and A1 in size. While the B series is less common in print use, it is more regularly used in other situations such as posters, books, envelopes, passports and more.

Did you know? 1 pine tree can produce about 80,500 sheets of paper! 🤯
A Paper Sizes
Format Width × Height (mm) Width × Height (in)
B0 1000 × 1414 mm 39.4 × 55.7 in
B1 707 × 1000 mm 27.8 × 39.4 in
B2 500 × 707 mm 19.7 × 27.8 in
B3 353 × 500 mm 13.9 × 19.7 in
B4 250 × 353 mm 9.8 × 13.9 in
B5 176 × 250 mm 6.9 × 9.8 in
B6 125 × 176 mm 4.9 × 6.9 in
B7 88 × 125 mm 3.5 × 4.9 in
B8 62 × 88 mm 2.4 × 3.5 in

"C" Paper Sizes

The dimensions of all "C size" paper are defined by the ISO216 international paper size standard. "C" sized paper is most commonly used for envelopes, although there are some other uses. The area of C series paper is the geometric mean of the areas of the A and B series paper of the same number. For example, C4 has a bigger area than A4, but smaller area than B4. Therefore an A4 piece of paper will fit into a C4 envelope and so forth.

Did you know? Paper in its current format is almost 2000 years old and was invented in China in the year 105! 🤯
A Paper Sizes
Format Width × Height (mm) Width × Height (in)
C0 917 × 1297 mm 36.1 × 51.1 in
C1 648 × 917 mm 25.5 × 36.1 in
C2 458 × 648 mm 18 × 25.5 in
C3 324 × 458 mm 12.8 × 18 in
C4 229 × 324 mm 9 × 12.8 in
C5 162 × 229 mm 6.4 × 9 in
C6 114 × 162 mm 4.5 × 6.4 in
C7 81 × 114 mm 3.2 × 4.5 in
C8 57 × 81 mm 2.2 × 3.2 in

RAW / Untrimmed Paper Sizes

The dimensions of all "RAW sized" paper are defined by the ISO217 international paper size standard. The format consists of the SRA series amongst others. SRA stands for "Supplementary Raw Format A". The untrimmed paper is usually used in commercial printing and as it is slightly larger than the A series format. This allows allows the ink to bleed to the edge of the paper, before being cut to match the A format aswell as being extremely useful when printing high numbers of smaller items on a sheet before trimming.

Did you know? 67% of the paper and cardboard used in the UK is recycled! 🤯
A Paper Sizes
Format Width × Height (mm) Width × Height (in)
SRA0 900 × 1280 mm 35.4 × 50.4 in
SRA1 640 × 900 mm 25.2 × 35.4 in
SRA1+ 660 × 920 mm 26 × 36.2 in
SRA2 450 × 640 mm 17.7 × 25.2 in
SRA2+ 480 × 650 mm 18.9 × 25.6 in
SRA3 320 × 450 mm 12.6 × 17.7 in
SRA3+ 320 × 460 mm 12.6 × 18.1 in
SRA3++ 320 × 464 mm 12.6 × 18.3 in