# Are metric units used by scientist?

Oh yes, scientists only use metric SI units.

### What is the conversion factor of the metric system?

Depends, what you want to convert to what. To convert between different metric units, powers of 10 are used. For example, a kilometer is 1000 meters. To convert from metric units to imperial units, you have to ask specific questions for specific units, for example, "how to convert inches to meters", or "how to convert pounds to kilograms". Depends, what you want to convert to what. To convert between different metric units, powers of 10…