This is a convenient online ruler that could be calibrated to actual size, measurements in cm, mm and inch, the upper half is the millimeter ruler and centimeter ruler, the lower half is an inch ruler.

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.

A handy and accurate on-screen online ruler in inches and centimeters/millimeters. For any device.

Enter visible screen width below to calibrate ruler.

PiliApp/ Check actual size/ Online Ruler (cm/mm) Actual size of Online Ruler (cm/mm) 30CM / 300mm width:300.0mm (11.81Inch)

An online ruler is a digital tool or web application that can allows users to measure any objects or distances on their computer screen in Inches, Centimeters (CM) and millimeter (MM).

Our online actual size ruler allows you to take measurements in millimeters, centimeters and inches all at once, giving you the most accurate information. If you need to accurately measure an object, our online tool Actual Size Ruler is the perfect solution.

iRuler.net are trying to detect size of your screen and then shows ruler in actual size. We are using machine learning to identifying your device, so each time you specifying correct size you are making our Ruler smarter.

Online ruler to quickly measure objects on any device with any screen size. Accurate, user-friendly, supports both cm and inches. Perfect for instant size checks without needing any tools!

Oct 31, 2016 · This is an online ruler (centimeters, millimeters) can be adjusted to the actual size, before you use it, please set of pixels per inch in your own device, but also can be adjusted by reference. If you need a real ruler or tape, you can print a ruler, or purchase online.