The bonus in this system is the ease of calculations using multiples of tens available in this system as compared to others.
Some systems are based on measurements of body parts and arbitrary multiples of these measurements. The metric system
relies on the definition of each unit using standard procedures and prototypes.
An example is the definition of the weight measurement of one kilogram and the length measurement of one metre. The mass is a block of an alloy of platinum stored at the BIPM in France.
The metre is defined as the distance light will travel in a vacuum in the time of
