Today, when electronic products such as notebook computers and tablet computers are prevalent, notebooks and notepads exist silently in our work and study in a unique way and cannot be replaced. We have been in contact with notebook notepads since our school days, but we do not necessarily fully understand the size of notepad notebooks. In this regard, the sizes of common notebook notepads are summarized to help you choose the right size notebook.
The general size of notebook printing and notepad printing can be roughly divided into two size division methods. One is the usual way of saying, such as A3, A4, A5, A6, A7, B4, B5, B6, and other sizes; the other is called according to the open number, such as 16K, 25K, 32K, 64K, and other sizes.
The size of the most common notepad in daily life, such as A4, is the size of commonly used printing and copying paper, and it is also the international paper standard. This paper standard comes from Germany, which is 210*297mm; with A4 as the benchmark unit of measurement, A3 The size is twice that of A4, which is 420*297mm; the size of A5 is half of that of A4, which is 210*148mm; the size of A6 is a quarter of that of A4, which is 105*148mm; the size of A7 is A4 size 1/8 of, which is 105*74mm.
Similarly, B5 is also the size of commonly used printing and copying paper, and it is also an international paper standard, which is 176*250mm; with B5 as the benchmark unit of measurement, the size of B4 is twice that of B5, that is, 250*353mm; The size is the general size of B5, which is 125*176mm.
According to the name of the number of openings, it is the specification of domestic general paper, which is divided into positive degree and large degree. According to the size of positive degree full-open paper, 787*1092mm is the size of the full-open paper, and the size of 16K is full-open. One-sixteenth of the paper, which is 195*270mm, 25K size is one-twentieth of the full-open paper, which is 156*216mm, and so on, 32K size is 135*195mm, 64K size It is 97*135mm.
The above dimensions are calculated according to the original size of the paper. If it is made into a notebook or notepad, there will be different subtle differences. Due to different manufacturers, they basically meet the above specifications. The reason for the difference There is the size of the cover, the way of binding, the paper of the inner pages, etc.
The sizes of A3 and B4 are relatively large and not easy to carry, so they are suitable for sketching and other notebooks; the sizes of A6, A7, and 64K are relatively small, and are seldom used as business notebooks or notepads, which are commonly used by students. Notebook, easy to carry every day.