Online Ruler will help you to take actual size measurements of any object in mm, cm, and inches. Also, it's free and easy to use.
Your current screen resolution is pixels.
Have you ever imagined that we can measure anything from Online Ruler? Now, you don't have to carry the physical ruler with you everywhere all the time. Just open our tool on any device and start measuring your object height, width, and length. Also, it allows you to take the measurements in millimeters, centimeters, and inches.
The ruler showing on your computer or laptop screen is not an image. It takes your screen resolution automatically and adjusts according to your device screen. So, when you open this tool in a widescreen then it will extend to fill out the full screen. Also, it works fine on all large, medium, and small devices like smart TV, PC, laptop, mobile, and iPad.
Our tool is convenient and it can also be calibrated to actual size to make the most accurate ruler online.
It's very simple to use this virtual tool. But we recommend you do the calibration process before using it for very accurate results. Refer above section if you didn't do that.
Note: PPI numbers will be stored just on your web browser. Therefore, when you come back to the website then you don't need to change it again. It is stored until you don't delete the browser's cache and cookies.
Yes, of course, it is 100% accurate. Our tool works on pre-defined algorithms and it tracks your screen size when you open it. After that, it automatically adjusts the ruler scale as per the display size. As a result, you can see the wide, accurate, and full-width ruler.
You can calibrate it with any standard thing and adjust the PPI to make it correct.
As you can see that the inches scale is written at the bottom. So, read the bottom scale to check it.
Centimeters and millimeters are placed at the top part of the ruler. Therefore, read the top part to check it.
1 cm = 0.393701 inches
To convert the cm value into inches, just divide the centimeter value by 2.54.
There is a 30.48 cm in 12 inches ruler.
Above all discussion was about the Online Ruler, how to calibrate to actual size, and how to measure any object using it. Also, it's free and easy to use. No login or signup required. You can access it through any web browser online. So, use it anytime and anywhere. Don't forget to share it with your friends.