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.
I have listed 7 free online rulers in cm, mm, and inches.. It uses your monitor pixels per inch (PPI) to display the actual size of the ruler, with high accuracy.
Here are some rulers you can print out.. Meterstick (cm and mm). You should disable any options like "shrink oversize pages to paper size" or "scale to fit .
This website measures the size of your screen and creates the image of a ruler that is the actual size.
If you want to measure the actual size of a small object in inches or centimeters and you don't have a real ruler at hand, this virtual on-screen online ruler will .
This is an online scale ruler that can be adjusted to an actual size, the upper half is metric ruler (millimetre and centimetre), lower half is inches ruler, before you .