When you want to measure the length of something, you tend to go ahead and use a ruler to get the job done. But if you don’t have a ruler by your side to get the job done, you don’t need to worry about anything. You can simply think of using an online ruler. All you have to do is to get your hands on a real size ruler online. Then you will be able to use it and measure the overall length of something in a convenient and a hassle-free manner.

## What is the online ruler?

The online rulers will be able to help you with measuring the length of something in both inches and centimeters. Using this kind of an online ruler is an easy thing to do as well. You will be able to see the ruler online on your screen. In other words, it will be a virtual ruler, which you can use in order to take measurements. It is possible for you to use this ruler and take measurements of any device. All you need to have is a device, such as a computer or a smartphone, which can help you with getting connected to the internet.

The online ruler is basically an online app. It will work on both desktop computers and laptop computers, which have al are screen. You will be able to get realistic measurements on your monitor as well. In addition, this online web app is in a position to work perfectly well on the mobile devices, such as your tablet, phablet, smartphone and e-ink reader. The maximum length of the ruler is 20 inches. However, you will not be able to see the entire length due to the limitations of your screen size. You can see the maximum length only if you have a screen, which has a width of more than 20 inches. Otherwise, you will be able to see the available distance, which you can find on your screen.

## How to use the online ruler?

Now you have a basic understanding of what the online ruler is. With that in mind, let’s go ahead and take a look at how you will be able to use the online ruler.

## 1. Setting up the screen diagonal

As the first step, you will need to set the screen diagonal. This can help you to get the best possible results while you use the online ruler and you will not come across any frustration. You will need to determine the diagonal size of your screen in inches. You can enter the value in the field that you can find in the left-hand corner of the ruler. Then you can simply hit enter in your keyboard or press the Calibrate button. It is also possible for you to get the job done with the drop-down list, which you can see.

The online ruler is intelligent enough to determine the diagonal of the screen that you use through your web browser. But it is better if you can also calibrate it, so that you will be able to keep peace of mind when taking the measurement of something. You can make sure that you are getting only positive results, which you will be able to rely on.

In case if you don’t have a clear understanding about the diagonal screen size value, you are encouraged to take a look at the technical documentation that comes along with the device. You can simply search for it with the model name on the internet.

## 2. Fit according to the width of the plastic card

It is also possible for you to calibrate the ruler that you can see on the screen with the assistance of a plastic card, such as your bank credit card. The standard width of a credit card is 3.37 inches. You will be able to see the sign displayed under the scale of the ruler for your convenience. You can simply refer to it and proceed with calibrating the ruler. You can change the value that you can see in the input field according to the specific requirements. Then you will be able to finish the job.

You will also be able to use this method in order to determine the display diagonal size as well. It is better if you can take the measurements using several manual inputs. Then you will be able to make sure that you can rely on the results that are being provided by the online ruler.

It is also important to have a basic understanding on how this ruler achieves the actual size. This is determined by the screen height and width of the web browser. There is a script, which has the ability to calculate the diagonal distance in pixels. Then it calculates the number of pixels per inch that can be found in your screen. These measurements can easily be used in order to determine the diagonal distance of the screen.

Now you know how the online ruler can provide you with accurate results in measuring a distance. You already know how to use this online ruler to measure distances in day to day life. All you have to do is to set up the online ruler on your screen, take the item that you want to measure the length and then keep it on top of the screen or in front of it. Then you can easily use the virtual ruler, in a similar way to an ordinary ruler and measure the distance. This is a convenient and a hassle free method available for you to measure the distance, especially if you don’t have a physical ruler along with you. You will be able to get accurate results from this ruler at all times as well.

Author's Bio:

Hi,
This is Arifur Rahman. Who is a professional SEO Specialist & Blogger. He has been working since 2015. He loves to share his stories, tips, tricks and teach online readers.