Wednesday, October 27, 2021

What is a4 in inches

 A4 paper is one of the most common office supplies!  It is the standard paper size for most home printers. We're just too familiar with it, but ever wonder why it's called so? What does the A stand for?

What is a4 paper?

When stock papers initially comes out of paper mills, they are sheets of large sizes: mostly commonly format A and format B. As defined by the ISO 216 standard, the dimensions of format A: 841*1189 mm (or 33.11 * 46.81 inches) and format B: 1000 * 1414 mm (or 39.37 * 55.67 inches). But apparently the two sizes are not consumer friendly!

So the sizes what we see in our consumer world needs further cutting. The original sheets from paper mills are A0 size, then you'll get A1 by cutting it in half. If you cut an A1 in half, you'll get an A2...After 4 cuts, you can get an A4 paper sheet. Likewise, you can get A5, A6...Note: all sizes of A series paper stocks remain a constant height/width ratio 1:1.41.

A4 Paper - A sizes


What is a3 in inches?

As stated above, you can easily figure out that an A3 paper is 11.69*16.54 in inches or 29.7*42 in cm.

What is a4 in inches?

Similarly, an A4 paper is 8.27*11.69 in inches or 21*29.7 in cm.

  • ISO A-series paper size chart:

in cm in inches in points
Size Width x Height Width x Height Width x Height
A0 84.1 x 118.9 33.11 x 46.81 2384 x 3370
A1 59.4 x 84.1 23.39 x 33.11 1684 x 2384
A2 42 x 59.4 16.54 x 23.39 1190 x 1684
A3 29.7 x 42 11.69 x 16.54 842 x 1190
A4 21 x 29.7 8.27 x 11.69 595 x 842
A5 14.8 x 21 5.83 x 8.27 420 x 595
A6 10.5 x 14.8 4.13 x 5.83 298 x 420
A7 7.4 x 10.5 2.91 x 4.13 210 x 298
A8 5.2 x 7.4 2.05 x 2.91 148 x 210

  • ISO B-series paper size chart:

Size in cm in inches in points
B0 100 x 141.4 39.37 x 55.67 2835 x 4008
B1 70.7 x 100 27.83 x 39.37 2004 x 2835
B2 50 x 70.7 19.69 x 27.83 1417 x 2004
B3 35.3 x 50 13.90 x 19.69 1001 x 1417
B4 25 x 35.3 9.84 x 13.90 709 x 1001
B5 17.6 x 25 6.93 x 9.84 499 x 709
B6 12.5 x 17.6 4.92 x 6.93 354 x 499
B7 8.8 x 12.5 3.46 x 4.92 249 x 354
B8 6.2 x 8.8 2.44 x 3.46 176 x 249
B9 4.4 x 6.2 1.73 x 2.44 125 x 176
B10 3.1 x 4.4 1.22 x 1.73 88 x 125

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