18+ Actual Ruler Cm
Gif. It uses the canvas element. This is the number of pixels per inch in your image.
Download a free printable ruler for measurements when you don't have one handy. The online ruler uses both metric (i.e cm and mm) and inches (in) to measure the objects. Just download one, open it in a pdf reader, and print.
It is dynamic and adjusts/calibrates itself based on.
You can move the ruler freely on your screen by selecting drag it. Apart from this, online actual size ruler uses three different calibration methods. For letter as well as a4 sized paper, inches as well as centimeters. Alibaba.com offers 839 actual size ruler products.