You can change the ruler unit from inches to centimeters ... The default setting on my computer is cm as I am following the Metric. If I change it to the US, it will display inches.

Besides having both metric and imperial markings on the front ... That section has the last 2 cm of the ruler on its right-hand end, leaving the main body of the ruler 10 cm long.

The metric system is used to measure the length, mass or capacity of an object. Length is measured in millimetres (mm), centimetres (cm), metres (m) or kilometres (km). Mass or ...