What is the A4 size? What is the size of the A4?

The size of A4 paper is 210mm 297mm.

When you set the resolution to 72 pixels inches, the pixels of an image of the size of A4 paper are 595 842, and when you set the resolution to 150 pixels inches, the pixels of an image of the size of A4 paper are 1240 1754.

Set A paper. The dimensions are all in a 2:1 aspect ratio. The most commonly used paper size is A4, which is 297 times 210 mm.

The basis for the development of the A series was first to find a sheet of paper with an aspect ratio of 2 and an area of 1 square meter (m2). So the paper has a width of 841 mm and 1189 mm (an aspect ratio of 2:1) and is numbered A0.

If the long side of the A0 paper is cut in half, two sheets of A1 paper are obtained, both with a width of 594 mm and a length of 841 mm.

If you continue to cut the A1 paper in half in this way, you can get the paper sizes of A2, A3, A4 and so on in order. Dimensions are rounded to the whole number when setting standards, so paper sizes with decimals (less than 1 mm) are rounded.

A4 size is

1. A4 paper is a relatively common paper size, which is used by the International Organization for Standardization.

The specific specification is 21*, which is 210*297mm.

2. ISO 216 defines the three groups of paper sizes A, B and C, and A4 paper belongs to group A paper, which has a size aspect ratio of 2:1 and a specific size of 297*210 mm.

The A series is based on a sheet of paper with an aspect ratio of 2 and an area of 1 square meter (m2), which is 841 mm and 1189 mm in width and 1189 mm respectively, called A0, and when folded in half again and again, the paper sizes A1, A2, A3, and A4 are obtained. When formulating the standard, the dimensions are based on integers, so if the size of the paper to be cut has a decimal (less than 1 mm), it will be rounded to the nearest number, as follows (in millimeters):

A4 paper size.

A3 paper size: 297 420;

A2 paper size: 420 594;

A1 paper size: 594 841.

A4 paper. It is defined by ISO 216 of the International Organization for Standardization, and the specification is 21*, and most countries in the world use this international standard for paper sizes. This criterion was originally adopted by the Weimar Republic.

In 1922 it was incorporated into DIN (DIN 476), and although some of these formats were developed in France at the same time, they were later forgotten. ISO 216 defines three groups of paper sizes: A, B, and C. Group C paper size is mainly used for envelopes.

The size of A4 paper is 210mm 297mm.

A4 paper has different pixel sizes on different resolution screens:

1. When the resolution is 72 pixels, the pixels of an image of the size of A4 paper are 595 842.

2. When the resolution is 96 pixels, the pixels of the image of the size of A4 paper are 794 1123.

3. When the resolution is 120 pixels, the pixels of the image of the size of A4 paper are 1487 2105.

4. When the resolution is 150 pixels, the pixels of the image of the size of A4 paper are 1240 1754.

5. When the resolution is 300 pixels, the pixels of the image of the size of A4 paper are 2480 3508.

A4 paper thickness is how many millimeters.

1. Different countries have different requirements for A4 paper, so there is no specific standard for the thickness of A4 paper. Different brands of paper have different quality and different thicknesses. Take 80 grams of flat A4 printer paper as an example, there are a total of 500 sheets, and the thickness is about 52mm, because each A4 sheet is only thick.

2. According to the ISO 216 definition of the International Organization for Standardization, we can know that the thickness of the paper will be divided according to the specific grams per square meter, which are 60g, 70g, 75g, 80g, 85g, 90g, 100g, 120g, etc. The density of the paper is all the same because the heavier the weight of the paper per unit area, the thicker the thickness of the paper.

3. In daily office, the thickness of paper for different purposes is also different. For example, 70-85g is generally used for copy paper, about 60g for printing paper, and 50-60g for all-in-one paper.

Commonly known as positive open paper, A series paper: is defined by ISO 216 of the International Organization for Standardization, the paper with an aspect ratio of 2 and an area of 1 square meter (m) is numbered A0, with a width and length of 841 mm and a band band of 1189 mm. If the long side of the A0 paper is cut in half, two sheets of A1 paper are obtained, with a width of 594 mm and 841 mm.

In this way, continue to cut the A1 paper in half, and get A2, A3, A4, etc. according to the order of the stupid conversation.

The dimensions of the A4 are 297mm x 210mm, 1 4 is 149mm x 105mm, and 1 2 is 210mm x 149mm. You just set it up on the printer and you're good to go.

A4 paper is ISO 216 (International Standard for Paper), which is the A4 paper size used in most worlds. At present, China adopts the ISO 216 standard to standardize the size of paper, which is internationally applicable.

What are the A4 dimensionsThe size of the A4 paper is 210mm 297mm, when you set the resolution is 72 pixels per inch, the pixels of the image of the A4 paper size are 595 842, when you set the resolution is 150 pixels per inch, the pixels of the image of the size of the A4 paper are 1240 1754.

The aspect ratio of the paper size in Group A is 2:1 and then rounded to the nearest millimeter. A0 is defined as an area of one square meter with an aspect ratio of 2:

1 piece of paper. The next paper sizes such as A1, A2, and A3 are defined as folding the paper with one less number along the long side, and then rounding it off to the nearest millimeter. The size of the B paper is the geometric average of the paper in Group A with the same number and one less number.

Before the popularization of printers, B-group paper was often used. Group C paper size is mainly used for envelopes.

The size of A4 paper is 210mm 297mm.

A4 paper is defined by ISO 216 of the International Organization for Standardization, with a specification of 21*, and most countries in the world use this international standard for paper sizes.

1. When you set the resolution is 72 pixels inch, the pixels of the image of the size of the A4 paper are 595 842, and when the resolution you set is 150 pixels inches, the pixels of the image of the size of the A4 paper are 1240 1754.

2. The specification of the paper refers to the fact that after the paper is made, it is trimmed and cut to a certain size. How much in the past"On"(e.g. 8 carat or 16 carat, etc.) to indicate the size of the paper, and now I use international standards to indicate the format of the paper with marks such as A0, A1, A2, B1, B2, etc.

3. The standard stipulates that the ratio of the width (represented by x) and the length (expressed by y) of the paper is x:y=1:n. Standard A4 paper: 210mm 297mm because: 1 ft = , so 1 sq ft =.

4. So the area of 1 sheet of A4 paper = 210 297 = 62370 (mm) 62370 square feet) square feet). Depending on the quality of the paper, the thickness varies. A4 Printer Paper (80 g m) 500 sheets The thickness is about 52mm, so the thickness of a piece of paper is about.