The small lines between the 1/2 mark and the numbered centimeter mark are 1/10 cm, otherwise known as a millimeter, keep in mind that there are 10 mm to 1 cm. The measurements are decimalized and there are no fractions.
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.
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 .
A handy and accurate on-screen online ruler in inches and centimeters/