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.

Convert CM to MM: convert millimetre/millimeter(mm) to centimetre/centimeter(cm), or reverse convert. How to use a ruler. This ruler measure in two different units of length, inches on one side (English ruler) and centimeters on the other side (metric ruler).

Feb 22, 2025 · A millimeter (also spelled “millimetre”) is a unit of length in the metric system—a system of units that includes centimeters, meters, and kilometers. 1 millimeter is equal to 1/1000 of a meter, or roughly the size of a pencil’s tip. So how do you measure this tiny distance?

Instant free online tool for millimeter to inch conversion or vice versa. The millimeter [mm] to inch [in] conversion table and conversion steps are also listed. Also, explore tools to convert millimeter or inch to other length units or learn more about length conversions.

Oct 31, 2016 · Online MM Ruler. 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.

May 26, 2019 · What are millimetres and how do we measure millimetres using a ruler? Learn how to measure and read mm with our video lesson and worksheets.

A millimeter is a unit measuring length in the metric system. “Milli” comes from the Latin word “mille,” meaning one-thousandth. Therefore, a millimeter is one-thousandth of a meter.

Online Ruler in Actual Size (inches, cm/mm) — measure something! For the ruler to display correctly (i.e., in proportion to the actual physical size), it must be calibrated. You can calibrate it in one of the following two ways: This is the most reliable and easy way. Specify the size of the diagonal of your screen in inches (").

This virtual ruler that can be adjusted to true size, that can actually measure the actual length, the upper half is metric ruler (millimetre and centimetre), lower half is inches ruler, before you use this ruler, please set the pixels per inch to your own device. There are some ways to know the pixels per inch (PPI) to your devie.

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 …