Length Unit ConvertersĬonvert mm to inches, cm to inches, inches to cm/mm, It can be calibrated quickly and the measurement is very accurate.Ĭould not find a real ruler on your desktop ? try this virtual screen ruler. Our digital online ruler can help you, support both metric and imperial units, When you need to measure the length of something, is it always impossible to find a ruler, Use credit card comparison to calculate real screen size Use this transparent protractor to measure the angle of anything Variable scale ruler with imperial units(in, ft, yd, mi) Variable scale ruler with metric units(cm, m, km) If the dynamic ruler doesn't redraw after you rotate the smartphone, So that the length of online ruler will longer. Turn your smartphone and tablet to a ruler and measure the scale of any small thing.Īnd turn your mobile phone screen to landscape mode, Welcome to try it and share it, let me know your idea. Hope you like our new command function 😛, I try to make the AI interaction smarter, In addirion to showing the length, I also addewd a comparison command, I decided to add a new "command" function( on the page top) for our dear friends, Regarding the joke about comments or commands here, I am very happy that many people like our online ruler,Īlso i am very excited to review all the comments from all the visitors. Try clicking on it, click in different places, it will tell you the length, it's kind of interesting.
30MM TO INCHES FRACTION HOW TO
If you touch or click on it, it will talk to you, if you don't know how to read the ruler, Move your mouse cursor over the ruler and it will show the length, I believe this online virtual ruler can also meet your needs.Ĭlicking on the ruler will mark a red vertical line for easy comparison of metric and imperial lengths.
If you are like us, you need a precise online ruler to measure the product size, It not only improves the accuracy of the measurement,īut also has a scale of inches and centimeters so that it can be used in our work. So later, we developed an online ruler by ourselves. If i just want to know what the approximate length is, that's fine,īut what i need is a more precise length so that i can apply it to my daily work. I found a problem that these existing online rules are not very accurate. Unfortunately, after i tried the virtual online rulers on the Internet, So i connected to the internet and tried to find an online virtual ruler to measure my product. Just like usual, i didn't carry a ruler with me, Just had a project on hand, and i had to tell the customer the actual size of a product. One day, i took my laptop computer to work in the coffee shop, Please visit this translation page(click). If you are willing to offer a better description in your native language, Make it more natural and easier for everyone to use, On the most popular browsers you can press the F5 key or click on the refresh button.Īnd we want to provide a better native language environment, Remember to save the setting for the next time you use it,Īfter save the setting, refresh your brower to check the result.
30MM TO INCHES FRACTION FREE
No installation required, free to use, and works on your phone screen as well.ĭragging ruler adjuster left or right to fit the size of your reference object, How to use your computer screen as a ruler?Īll you need is a web browser and a credit card to compare physical sizes, Save the pixels per inch (PPI) according your own device, then you can use this ruler next time. Select a comparison item to start calibrating the ruler, My mobile phones (Sony Xperia C5, OPPO R11 Plus) are both 122.6 PPI,Īpple iPhone 5 is 163 PPI, iPhone 7 is 162 PPI, iPhone X is 151.7 PPI. Now i have the most accurate virtual ruler on the web. So i adjust the default pixels per inch(PPI) to 100.7, I found the markings are not very accurate at 30cm, In the office, a A4 size printable paper is a good comparison object,īelow ruler adjuster help us to calibrate accuracy more easily.Īfter i measure the size of virtual ruler by an actual ruler, You can compare to any standard size object at your side,Į.g., coin, credit card, CD, paper money, mobile phone, When you know the width, you can adjust the ruler's PPI setting by it, Then search "the width of your paper money" online, Use standard objects to compare lengths, check your wallet, use any paper money to be our compare object,.
I am lucky and found my screen has 100 PPI.
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