Do you need to measure something, but don’t have a ruler at hand? This situation is no longer surprising - after all, finding a smartphone or monitor near you has become much easier than a real ruler, caliper or other tool that measures length :)
Today I will tell you about three services that solve the problem of measuring any object in centimeters better than anyone else. I studied about a couple of dozen online rulers and chose from them only those that give a minimum error of a few millimeters and allow calibration (adjustment of actual dimensions) for the most accurate measurement.
1. Piliapp
This screen ruler is 30 cm long. When you access the site, the service algorithm itself automatically determines the diagonal of your monitor so that the ruler on the screen is displayed in natural size.
Sometimes the algorithm is slightly wrong and gives a measurement error of +/- 5mm. This is why I recommend manually specifying the diagonal if you know it. To do this, click on the green button and in the window that opens, indicate the number of inches of your screen.
There is a much more reliable way to increase the accuracy of the measurement. To do this, click on the “I don’t know my screen size” button and on the page that opens, attach any of your bank cards (they are the same size in all countries of the world) to the template. Move the scale slider until the screen template and your map are the same size.
By performing this kind of calibration, you can be 100% sure that the virtual ruler will exactly match the real one. Link
2. Ruler
This ruler measures dimensions in inches by default, so we need to immediately switch the metric system to the usual centimeters:
In this service, you yourself need to indicate the diagonal of your screen in the appropriate window, selecting it from the list or specifying an arbitrary number, and click the “Calibrate” button.
If you don’t know the exact number, touch the bank card to the screen and select the screen size from the list until the right edge of the card matches the left edge of the corresponding icon on the ruler.
Once you have done this, you can be sure that subsequent measurements will be accurate.
3.Lineykasm
The third online service has all the necessary instructions for making measurements and calibration in Russian.
Therefore, I will only note its main difference from the previous two: you can manually calibrate the screen ruler using not only a credit card, but also such items as:
- Matchbox
- A4 sheet of paper
- Banknote (dollar, ruble, hryvnia)
- CD disk
If it’s relevant to anyone, this service also makes it possible to print the ruler on paper. There are two options to choose from: a standard length of 30 cm and a 12-inch length with fraction markings.
In the process of optimizing some website elements, it is very important to maintain proportionality, otherwise the web project will turn into a pathetic, unattractive sight. It's one thing when a person designs on a piece of paper. In this case, you can use a pencil and ruler. Completely different circumstances arise if actions must be performed within the monitor. In such circumstances, you need to use the free mySize program.
mySize screen ruler is an excellent, extremely easy-to-use tool designed to measure the length and width of elements displayed on a computer screen.
Under what circumstances might an on-screen ruler be useful?
Working with graphic elements (editing images in accordance with the required parameters).
Editing the site (measuring the parameters of the site header, sidebar, associated with the need to make changes to the design of the resource).
The mySize line is a first-class assistant, which was previously sorely lacking for all webmasters and web developers. The program implements 3 measuring modes:
In pixels.
In centimeters.
In inches.
mySize – installation features
The installation of this software is no different and is performed in the standard Windows sequence. We launch the installer, after which a window will pop up welcoming the installation wizard. Click the “Next” button, read the license agreement, accept the terms (the “Accept” button) and click “Next” again. Select the installation folder – Next. We wait 20 seconds, after which a shortcut like this will appear on the desktop.
Well, the screen ruler is installed.
To open the program, double-click the left mouse button on the shortcut. The tool has the following design.
mySize screen ruler - subtleties of operation
As you can see, this is an ordinary double-sided ruler, with not quite ordinary capabilities. In order to call the system menu, click the left mouse button in the area where the two rulers join (1).
You can move the on-screen ruler by holding down the mouse. If you need to perform a minimal shift, use the special arrows located near the menu (2).
The free value is changed by sliders located at the end of the horizontal and vertical ruler (3).
The need for slight movement of the ruler is carried out using the buttons for moving the sliders (4).
mySize - ruler settings
Clicking the menu opens a window with settings tabs.
Hide – a tab that hides the program. After clicking, the program shortcut is displayed in the tray.
Measurement – specifying parameters in pixels, centimeters or inches.
Settings – a tab that allows you to configure whether the program should be displayed on top of all windows or on the taskbar. As mentioned in passing, this is not an ordinary ruler, providing the opportunity not only to measure an object, but also to take a screenshot of it. To do this, press the “S” hotkey.
This will call up additional elements in the form of two red lines forming a rectangular area.
Rulers – select a horizontal or vertical ruler.
Movement is only along the X axis, then the Y axis is blocked. Only along the Y axis, then the X axis is blocked.
Also among the settings is a detailed user manual, information about the program, a link to the developer’s website and an “Exit” tab.
Enjoy it for your health. That's all for me. Thank you for your attention and see you soon on the pages of Stimylrosta.
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Ruler app includes the following functions: unit converter (mm to inches, centimeters to inches), length calculation, straight line calculation, area calculation, thread height determination, caliper, online ruler, etc.
The screen ruler marked strokes (scale), several units of length (centimeter, meter, inch) used to measure distance.
Electronic Ruler Features:
- measurement accuracy;
- easy to use;
- stylish design;
- simple calibration;
- measurement in 4 modes: point, line, plane, level;
- translated into 15 languages.
- set units of measurement: cm, mm, inch;
- length measurement (with hold function) on each side of the device;
- graphic paper, vertical and horizontal lines;
A simple but very convenient on-screen ruler. No permissions, no free, no free ads.
Ruler Automatically size for most screens. However, the first time you use it, check the scaling using a regular ruler. If this is incorrect, touch CAL and drag the ruler to the desired size.
Centimeters and inches.
Measure the length between the two markers.
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Let's start with an English-type ruler. It has 12 divisions (large marks) indicating inches. 12 inches equals 1 foot (30.5 cm). Each inch is divided into 15 divisions (small marks), that is, each inch on the ruler is indicated by 16 marks.
- The higher the mark, the higher the indicator. Starting at the 1" mark and ending at the 1/16" mark, the marks decrease in size as the readings decrease.
- The ruler readings are read from left to right. If you are measuring an object, line up its beginning (or end) with the left end of the ruler. The number you find on the ruler on the right determines the length of the object.
The English type ruler has 12 inch divisions. They are numbered and indicated by the largest marks. For example, if you need to measure the length of a nail, line up the start (or end) with the left end of the ruler. If the end (or beginning) of the nail lines up with the large "5" mark, then the nail is 5 inches long.
- Some rulers also have "1/2" markings on them, so be careful not to confuse the largest inch marks with the smaller ones.
1/2 inch marks. These marks are half the length of the inch marks. They are placed in the middle of each 1-inch division because they represent half an inch. That is, such marks are applied between 0 and 1 inch, 1 and 2 inches, 2 and 3 inches, and so on. There are 24 such marks on a 12-inch ruler.
- For example, line up the left end of the ruler with the top of the eraser on your pencil. If the tip of the lead points between the 4" and 5" marks, then the length of the pencil is 4 and 1/2 inches.
1/4 inch marks. These marks are placed in the middle of the 1/2 inch marks and are smaller in size and indicate 1/4 inch. In the first inch, these marks indicate 1/4, 1/2, 3/4 and 1 inch. Although there are separate "1/2 inch" and "1 inch" marks, they are included in the 1/4 inch measurements because 2/4 inch is equal to half an inch and 4/4 inch is equal to 1 inch. There are 48 such marks on a 12-inch ruler.
- For example, if you measure a carrot and the end lines up with the mark between the "6 1/2" and "7" marks, then the length of the carrot is 6 and 3/4 inches.
1/8 inch marks. These marks are placed between the 1/4 inch marks. Between 0 and 1 inches there are marks indicating 1/8, 1/4 (or 2/8), 3/8, 1/2 (or 4/8), 5/8, 6/8 (or 3/4) , 7/8 and 1 (or 8/8) inches. There are 96 such marks on a 12-inch ruler.
- For example, you measure a piece of fabric and its edge is aligned with the 6 mark after the 4" mark, which is located directly between the 1/4" and 1/2" marks. This means the length of the fabric is 4 and 3/8 inches.
1/16 inch marks. These marks are placed between the 1/8 inch marks. These are the smallest marks on the ruler. Between 0 and 1 inches there are marks indicating 1/16, 2/16 (or 1/8), 3/16, 4/16 (or 1/4), 5/16, 6/16 (or 3/8) , 7/16, 8/16 (or 1/2), 9/16, 10/16 (or 5/8), 11/16, 12/16 (3/4), 13/16, 14/16 ( or 7/8), 15/16, 16/16 (or 1) inches. There are 192 such marks on a 12-inch ruler.
- For example, you measure a flower stem and the end of it lines up with the 11 mark after the "5" mark. In this case, the stem length is 5 and 11/16 inches.
- Not every ruler has 1/16 inch marks. If you plan to measure small objects, or you want to take precise measurements, make sure your ruler has these markings.
Often there is a need to measure something on your monitor screen. This need most often arises when working with pictures. When you need to print something, and you are not sure that the result on paper will be the same as you expected. For example, I used to use an ordinary sheet of checkered paper, fit it to the screen and thus find out the size of a picture or something else.
It’s not that I’m such a dummy, I just didn’t have such an urgent need for ruler programs. But for those who work a lot with graphics, printers, or just need to measure something, I have prepared a description of several rulers and links to pages where they can be downloaded.
Metric ruler
The JR Screen Ruler is the only ruler I could find with a centimeter unit. But in addition to centimeters, you can also measure in pixels, inches and picas.
Works in all windowed Windows applications, just drag and drop where you need. It is possible to flip the ruler into a vertical and horizontal position.
The disadvantages of this program include the inability to change its color and the need to customize it. Without adjustment, there is a possibility of large measurement errors.
It’s very easy to set up; select the unit of measurement you need, say centimeter.
Apply a regular plastic ruler to the monitor screen (to the virtual ruler) and compare how much the scale readings diverge.
If everything matches, then the setting can be skipped. If there is still a discrepancy, then you need to change the number of pixels per unit of measurement. To do this, right-click on the ruler and select - Pixels per inch. And in the Input Box, change the pixel values until centimeters become centimeters. For example, my value was 105.
You can download the program from the official website. The size is less than 500 KB, does not require installation, you can get started right away.
Browser ruler
I can recommend a couple of cool lines for those who use the Google Chrome browser
Ruul. Screen ruler - beautiful pixel rulers, you can use several at once on one page. As you already understand, we are talking about expansion. More likely suitable for a developer, because... You can only work with them in a browser. There is even a special reminder showing what letters of different sizes look like in pixels. There is one drawback - this extension does not work on all pages, for example, on the Google website.
And the last one, my favorite - Ruler Opera Widget. Nothing special at first glance, but for some reason I really like this widget. Unfortunately, only pixel scale, but works in all Windows windows. Be it a browser, notepad, desktop or any folder.
For some reason it was removed from the Opera Add-on, where you can download it in Yandex or Google.
