Units of Measure
The Difference Between
What is the difference between the metric system and the customary system?
What is the difference between metric and coustomary?
In most of the world, there is no difference, because the metric system is the customary system. In a few isolated hold-out corners of the world, such as the USA, the English system is still customary. In those places, the main difference between the metric system and their customary system is that their customary system is a lot harder for their people to learn than the metric system would be.