Yes. There are about 3 countries that do NOT use the metric system.
The three countries that do not use the metric system are Liberia, Myanmar, and the United States. Each of these countries primarily uses the Imperial system for measurement.
In countries that use the metric system
How is the metric system use in America? How is the metric system use in Australia? How is the metric system use in Japan? How is the metric system use in Thailand? How is the metric system use in sweden? How is the metric system use in anywhere? Know the answer now?
In many European countries the metric system IS the customary system!
We learned the metric system in math today.
Scientist do use the metric system, they may refer to it sometimes as the SI system. Only three countries in the world haven't fully converted to metric, Liberia, Myanmar(Burma), and U.S.A, and even in these countries most scientist use the SI system.
All countries except for the USA, Liberia, Myanmar, and the UK use metric measurements. However, France came up with the metric system.
Systeme Internationale (SI)
the USA
Yes same metric system should be used by all countries. It becomes easy for everyone .
Liberia, Myanmar/Burma, and the U.S.A., are the only non-metric countries, and even these are increasingly turning to the metric system.