Welcome to try it and share it, let me know your idea.Ĭould not find a real ruler on your desktop ? try this virtual screen ruler.Ĭonvert mm to inches, cm to inches, inches to cm/mm, Hope you like our new command function 😛, I try to make the AI interaction smarter, 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. I believe this online virtual ruler can also meet your needs. 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, If you are interested to help this, please visit this translation page. We are looking for volunteer to improve the content in your native language, We hope to provide a more user-friendly experience,Īre you willing to offer a native language version for your country ? On the most popular browsers you can press the F5 key or click on the refresh button. Remember to save the setting for the next time you use it,Īfter save the setting, refresh your brower to check the result. Save the pixels per inch (PPI) according your own device, then you can use this ruler next time.ĭragging ruler adjuster left or right to fit the size of your reference object, 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.

Search 'display by pixel density' online, check if there has your device's brand and model,.

The screen resolution of your current device is pixels. To have the most accurate ruler online, just set the pixels per inch(PPI),īelow are some ways to know the pixels per inch to your device.

Adjustable metric scale ruler