All photo sizes for printing in the table

Basic terms for understanding the topic

Pixels are small square dots, colored in a certain light, that make up a single whole – an image.

When you look at a photograph, the eye does not notice specific dots of the raster, since they are very small and their number can reach tens of thousands; they merge to form one picture. Only with magnification will you be able to see them.

There is a peculiarity: the higher the number of raster dots, the more details are drawn and the better the quality of the photograph.

Linear size is data on the width and height of the printed image, expressed in millimeters. They can be recognized using a regular ruler. For example, the linear size of an image with parameters 10*15 cm is 102*152 mm.

Parameters in pixels are data on the width and height of a digital image.

There is one peculiarity. Digital cameras take pictures of the same sizes: 640*480, 1600*1200, but on the monitor we see 800*600,1024*768,1280*1024. That is a significant discrepancy.

Let’s look at examples. If the picture has a size of 450×300 raster pixels, then the picture will be rotated to fit the album, that is, positioned horizontally. What does this depend on? The width of the image is greater than the height.

If we take the picture size as 300*450, then it will be located in portrait orientation, that is, vertically. Why is this so? The width is less than the height.

Resolution is a number that relates values ​​in millimeters and pixels, measured in dpi (from the English “dots per inch” – the number of dots per inch).

Experts advise setting the resolution to 300 dpi, intended for obtaining high-quality photographs. Minimum resolution – 150 dpi.

The higher the indicator, the better the quality of the photo.

But it’s worth noting that if you take a photograph larger than the original, that is, “stretch the raster points,” then the quality drops.

Resolution may vary depending on different camera models. What’s the secret? Manufacturers of photographic equipment indicate an inaccurate number of megapixels, for example, 12 MP. In fact, it may turn out to be 12.3 or 12.5 MP. But the print quality will not deteriorate due to this fact.

“photoshop”

  1. Another method requires Photoshop. Look on the control panel on the left for an icon that looks like two crossed corners and a diagonal dotted line. Right-click on it and a list of available functions will appear. We are interested in the top one – “Frame”. It has the same icon.
  2. Open the desired file for editing in Photoshop. As in the case of Paint, this can be done through the “Open” menu item, or by dragging a picture into the program’s working field.
  3. By default, the picture will be protected from editing. To remove protection, pay attention to the right menu in the program. A picture appeared there and to the right of it was an image of a closed castle. Double-click the left mouse button on the lock icon. You will be prompted to create a new layer – click OK. The image can now be edited.
  4. Using the “Frame” tool, which we looked at in point No. 1, select the desired part of the image. This is done by stretching the frame in the same way as in the case of the Paint program. Frame dimensions can be dragged and stretched left/right/diagonally. As soon as you mark the desired area with a dotted line, press Enter on the keyboard. The program will generate a separate fragment based on the selection. All photo sizes for printing in the table
  5.   Using the “Save As” menu item, save the file. Please note that by default, Photoshop suggests saving the image with the extension *. PSD. If you need a different permission – *. JPG or *. PNG – Manually select other options when saving.

Our instructions helped – tell your friends

Paint

The Paint utility is available in any Windows OS.

  1. Open the desired image in the program through the “Open” top menu item, or drag the image with the mouse into the utility’s working window. At the bottom of the program the dimensions of the image in px are shown.
  2. Next, use the “Select” function (stretching the frame) to select the area that you want to leave. Click the “Crop” button – only the selected fragment will remain. All photo sizes for printing in the table
  3. Using the “Save As” menu item, save the new image. We recommend that you do not re-save the source files, but leave them just in case. If the cropping was unsuccessful the first time, then you can always make a new one based on the source file.

In pixels

Everything is the same as for linear dimensions, but pixels, rather than millimeters, are used as a reference point. Accordingly, the numbers indicating the dimension will be completely different. For example, the dimension of 297×420 mm when converted to pixels will already be 3614×5410.

That’s it

Today we looked at the main photo formats for printing and found out that it is very important to take into account the linear parameters of the image before printing. I wish everyone bright and joyful moments that you want to save in the good old way – in the form of a printed photograph.

It’s great to have photographs, especially when they were taken by a professional photographer. Do you print pictures or prefer electronic media and cloud storage?

Write in the comments, it’s very interesting to know your opinion about printing photos. Maybe you have some questions? By the way, if you don’t know where to get cool photos for free, I can tell you! And that’s all for today, have warm days this summer!

Ivan was with you.

For regular photos

Photo size Linear, mm In pixels (for 300 dpi) Aspect Ratio ISO standard ISO size, mm
30×60 306×611 3602×7215 1:2 ~A2 420×594
30×45 306×458 3602×5938 2:3 ~A3 297×420
30×40 306×421 3602×4972 3:4 ~A3 297×420
20×30 204×306 2409×3602 2:3 ~A4 210×297
15×21 153×211 1807×2492 3:4 ~A5 148×210
10×15 103×153 1217×1807 2:3 ~A6 105×148

For large format printing

Format, cm In pixels Aspect Ratio
100×300 10,000×30,000 1:3
100×150 10,000×15,000 2:3
100×100 10,000×10,000 1:1
90×120 9000×12,000 3:4
60×180 6000×18,000 1:3
60×90 6000×9000 2:3
50×75 5000×7500 2:3
40×60 4000×6000 2:3

Documents

Document formats are measured in cm!

  • For different types of IDs – 3*4 cm;
  • For visas – 3.5*4.5 cm;
  • For a passport – 3.7*4.7 cm;
  • For personal use – 9*12 cm;
  • For residence – 4*5 cm;
  • For passes – 6*9 cm.

Other line of formats

The main thing is that the photo frame matches the photo. Therefore, manufacturers produce special paper with certain sizes:

  • A8 (5*7 cm);
  • A7 (7*10 cm);
  • A6 (10*15 cm);
  • A5 (15*21 cm);
  • A4 (21*30 cm);
  • A3 (30*42 cm).

Why do you need to choose the right paper? As a result, you won’t have to look at an incomplete, cropped image, or trim off white margins that turn out to be unnecessary. Typically, the photo studio presents printable formats with examples.

Other standards

When converting side dimensions from the millimeter metric system to the pixel system, similar reference materials are often used.

If the photo does not meet the standards: crop

To crop pictures on a computer, you can use any suitable editor for processing graphic images. Let’s look at cropping using Paint and Photoshop as an example.

Why do you need to know the size of photos to print?

Previously, when we photographed our holidays and birthdays using “film” cameras, we took the “tube” of film to a special workshop. There we marked the selected frames that needed to be printed, and then picked up the finished order. And already at home they often discovered that the photos turned out unsuccessful. It was almost impossible to see them on film.

Now, in the era of digital photography, it would seem that everything is much simpler, and before taking a flash drive with pictures to print, we can thoroughly study them and select the best ones. But, in fact, only those who have never printed frames from digital media think so.

The problem here is that such pictures can have any extension, as well as the ratio of horizontal and vertical sizes. In turn, photo paper is produced within certain standard parameters. And if, for example, you take a wonderful square frame to a photo workshop, then when printing, the master will, at his discretion, “cut off” part of the photo in order to adapt it to the desired rectangular format. And it’s not a fact that you will like how he did it.

It is in order to avoid such troubles that you need to know the exact dimensions of the photographs, as well as how many horizontal and vertical pixels correspond to them.

You can get the necessary information by reading the special table provided above.

How to calculate dimensions for high resolution

You can calculate the parameters in pixels, which will result in a resolution of 300 units or more.

Let’s take a closer look at the photo with parameters 10*15 cm.

  • Linear values ​​of these parameters (usually indicated in special tables) – 102*152 mm.
  • Let’s multiply the width of the image (102 mm) by the resolution we want to achieve, in our case it is 300 dpi.
  • Divide the result of the last step by the number of mm in one inch – 25.4.
  • We get the number of raster points of the original image in width 102*300/25.4 =1205.

We will carry out the same algorithm for height.

152*300/25.4 = 1795.

So, we conclude that for any photograph, the size of which will be greater than 1205 * 1795 raster pixels, when printed on a 10 * 15 cm format, the resolution will be more than 300 units.

Sometimes it turns out that images with resolutions of 150 and 300 units look exactly the same. Why is this and what does it depend on? Depends on the genre of the picture and the distance from which it will be viewed.

Linear: width and length

These dimensions are measured in millimeters (mm), less often in centimeters (cm). The two main indicators are width and length. Length is also sometimes called height. When writing a dimension in the form “297×420”, the first number is the width, the second is the length.

How important is aspect ratio and standard sizes

All printed products from stores comply with generally accepted dimensions for the convenience of all interested parties – both manufacturers and buyers. Let’s say the consumer used a paper medium that is not suitable in size or dimensions, then the final picture may turn out to be stretched, unclear, compressed, or have any other visual defects. Therefore, it is always better to choose the paper size that is optimal for a particular photograph.

Custom sizes

Often we have to order a photo that is not a standard size, but a unique one – non-standard.

  1. 13*18 cm. Used extremely rarely. Printing is difficult.
  2. 40*50 cm or 30*40 cm. Pictures with these parameters will help decorate the interior, since they are quite large. Therefore, the quality must be high.

Order details

If you place an order online, then when you send an image, the system tells you which parameters will be more appropriate to obtain a high-quality image. If you choose a format of your own choosing and not one recommended by the program, then the administration does not take responsibility for receiving low quality.

It would seem that in the modern age of digital technology, why print photographs, since most photos are viewed in digital form. Knowledgeable people say that a photograph comes to life only when it is printed on paper, framed and hung in a room to decorate the interior.

Remember that before printing, you need to select certain parameters that will affect the quality of the printed image.

Pixel

This is the smallest possible indivisible visual object; it can be round or rectangular in shape. Such a colored “dot” always has a specific color. Raster images in photographs, monitors, and other multimedia devices are made up of many pixels arranged in height and width. Denoted by the word “pixels”, abbreviated “px” or px.

Example

Let’s say we need to calculate the formula for a size of 1217×1807 and a dpi of 300.

First we count one of the sides:

LR = 1217*25.4/300 = 103.04, rounded to 103 mm.

Side two:

LR = 1807*25.4/300 = 153 mm.

We get the final size of 103×153 mm, which corresponds to the 10×15 format.

Similarly, you can calculate any other size, having on hand known data on the dimensions of the sides, as well as the desired dpi.

Sizes

They are usually measured in a linear system or in pixels.

Photo sizes for documents

  • Standard sizes are established for photos for Russian passports and other documents. They are also subject to a number of other requirements.
  • For a Russian passport: 3.5×4.5 cm. People often encounter a problem when their photo is not accepted at the passport office. This often happens because many people bring 3×4 cm photos “for old times’ sake.” Now this is no longer relevant.
  • For a foreign passport: 3.5×4.5 cm
  • A 3×4 cm photo is required for a medical book, student ID, pension certificate, temporary registration, grade book, pass, certificate, military ID
  • For Schengen visa 3.5×4.5 mm

Also for photographs on documents, the color, size of the head and margins above it, the presence/absence of a corner, requirements for the background and paper texture are set. All these aspects are clarified by the organizations receiving the documents.

Photo sizes for printing are shown in the table

Where the standard or format is, this is the aspect ratio that it is advisable to adhere to so that you do not have to crop or stretch the photo. The second column contains the photo sizes in centimeters, the third in pixels, I think this is understandable.

Standard photo sizes are 10.2 x 15.2 cm (highlighted in the table) – these are the usual album photos that we are used to seeing.

Bitmap

A picture consisting of many pixels arranged in two planes (width and height) on a photograph, paper or display.

Independent calculation of the required size

Special ratios are used to calculate the required parameters.

The most popular format is 10*15

The most common “classic” format is 10×15 cm. For linear formats, a “margin” is usually included so that you can trim off the excess after printing and not make a mistake with the dimensions. Therefore, in the case of 10×15, the linear proportions are not exactly 100×150 mm, but 103×153 mm.

The 10×15 format will look good in a portrait frame, photo album or on an indoor wall. In addition, it uses less paper when printing – you can take more pictures with the same volumes of material. Because of this, 10×15 is found everywhere.

Instructions, how to print a 10×15 photo on a printer
right at home.

Communication with camera matrices

The most common photo formats, in terms of their aspect ratios, are often identical to the parameters of the matrices in digital cameras. So the ratio 1:1.33 corresponds to the standard ¾, and 1:1.5 – 2/3. Paper formats accepted in most countries of the world have a dimension corresponding to the proportion 1:1.4142 and therefore are not identical to photo formats.

Correspondence of photo formats to classic a3-a8 and their application in life

Dimensions in mm are in accordance with ISO 216.

Standard sizes

What photo formats are there? Let’s find out.

  1. The most popular print size is 10*15 cm. It is used to create a family archive.
  2. Next – 15*20 cm or A5.
  3. A4, 20*30 cm or 21*29.7 cm. Used to decorate walls with photographs. Since A4 is the size of office printing paper, printing will not be difficult, since printers are mainly designed to produce A4.
  4. 30*40 cm – complex format. Has two other names: A3 or A3. Why complicated? Because there is confusion. The A3 size has parameters of 297*420 mm, but such photo frames cannot be found, they are not on sale. The closest photo frame to this photograph is 30*40 cm. Be careful when ordering. Photo frames are made with glass.

Photo size chart for printing

Standard photo sizes for printing are presented in the table:

Standard photo Size (pixels) Exact size Number
9×13 1063×1535 8.90×12.70 1
10×15 1181×1772 10.20×15.20 2
13×18 1535×2126 12.70×17.80 3
15×20 1772×2362 15.20×20.30 4
15×21 1772×2362 15.20×21.60 5
15×22 1772×2480 15.20×22.80 6
15×30 1772×2598 15.20×30.00 7
15×38 1772×3543 15.20×38.10 8
15×45 1772×4488 15.20×45.70 9
18×24 1772×5315 17.80×24.00 10
18×25 2126×2835 17.80×25.40 11
20×25 2126×2953 20.30×25.40 12
20×30 2362×3543 20.30×30.50 13
25×38 2953×4488 25.40×38.10 14
30×40 3543×4724 30.50×40.60 15
30×45 3543×5315 30.50×45.70 16
30×90 3534×10630 30.50×91.40 17

To find out which inch photo sizes correspond to standard parameters, you just need to convert centimeters to inches by dividing them by 2.54 or use a special table.

Correspondence table for standard photo sizes in inches and pixels:

Standard Size (pixels) Size (inches)
9×13 1063×1535 3.5430×5.1170
10×15 1181×1772 3.9370×5.9070
13×18 1535×2126 5.1170×7.0870
15×20 1772×2362 5.9070×7.8730
15×21 1772×2362 5.9070×8.2670
15×22 1772×2480 5.9070×8.6600
15×30 1772×2598 5.9070×11.8100
15×38 1772×3543 5.9070×14.9600
15×45 1772×4488 5.9070×17.7170
18×24 1772×5315 7.0870×9.4500
18×25 2126×2835 7.0870×9.8430
20×25 2126×2953 7.0870×9.8430
20×30 2362×3543 7.8730×11.8100
25×38 2953×4488 9.8430×14.9600
30×40 3543×4724 11.8100×15.7470
30×45 3543×5315 11.8100×17.7170
30×90 3534×10630 11.8100×35.4330

Formula

LR = a*d/dpi.

Here:

dpi – number of pixels in inches.

d is a given constant, the number of mm in one inch (25.4).

a – the number of px in width or length.

LR – linear dimension in mm.

Photos for documents (table)

Document Size, mm
Passport of a citizen of the Russian Federation, international passport and Schengen visa 35×45
Pension and driver’s licenses, student or military ID, medical examination, temporary registration, work permit 30×40
For personal file or identification 40×60,

90×120

Photo size 3 by 4
: in centimeters, millimeters, pixels.

Photo formats for printing

Format is a parameter that reflects the proportional aspect ratio and linear dimensions of a photo.

  1. 10×15 (103×153 mm)
    The aspect ratio is 2:3, this photo format is comparable to A6, but does not completely coincide with it.
  2. 15×21 (153×211 mm)
    Approximately equal to A5, but larger than it by 1 mm and 5 mm on adjacent sides. When visually assessed by linear parameters, it looks like half a landscape sheet.
  3. 20×30 (204×306 mm)
    Correlates with A4, but the first is 6 mm smaller than the second on one side and 9 more on the other.
  4. 30×40 (306×421 mm)
    Closest to A3, but larger by 9 mm and 1 mm on adjacent sides.
  5. 30×45 (306×458 mm)
    Slightly larger than A3. As you can see, on one side it is 5 mm larger than the previous photo format.
  6. 30×60 (306×611 mm)
    Occupies an intermediate position between A3 and A2 and does not correlate with any of them.

Table 1 – Correlation of photo formats and photo sizes for printing:

When preparing photographs for printing, you should correlate its linear parameters with the format of the photo paper you want to use. As a rule, it is produced standard.

To avoid the situation that your photo does not fit completely on the paper, stretches out when printed, or an unwanted white “frame” appears, first crop the photo in a photo editor. You should also not forget about permission.

Of course, you can crop off the excess if the image turns out to be larger than the format you would like. This should be done very carefully so as not to spoil the appearance.