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.

Onlineruler.org detects your display size automatically and creates a virtual ruler according to your display size. But you can also change the ruler value manually according to your display size, First, you need to calibrate your monitor without calibrating size you measures is not accurate.

Enter visible screen width below to calibrate ruler.

The metric ruler is a handy on-screen ruler with cm and mm measurements. It’s great for anyone who needs quick and easy measurements, whether you’re a student, a teacher, or just need to measure something for a project.

At ruler.digital, we provide a handy and accurate on-screen online ruler in inches and centimeters/millimeters that can be used on any device. Our mission is to make measuring easy and accessible for everyone. In the past, if you wanted to …

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.

Online ruler tool, supports measuring length online using centimeter ruler, inch ruler, and chinese chi ruler. Support setting parameters such as scale, ruler color, etc.

Actual-size ruler app for desktop or phone. Free online ruler tool for measuring inches (in), centimeters (cm) and millimeters (mm)! The ruler scales to actual size based on your screen size. Every device has a different pixel density, so we auto-detect your …