Metric system ( aka the easy way)

The metric system in most peoples opinions is the a whole lot easier to work with then English units. All the units are measured in 10's. The basic units are the  meter (length), gram ( weight), liter (volume), and Celsius (temperature). all these units (except temp.) share the same prefixes:

Kilo = 1000
hecto= 100
deka= 10

deci= 1/10
centi= 1/100
mili= 1/1000

So for length you would just add meter to the end of the prefixes. You would get units like the kilometer and the centimeter. These you units are much more easy to convert also. all you have to do is move the decimal place.

If you wanted to convert 2 meters to centimeters you would just move the decimal 2 places to the right. You would get 200 centimeters.

The temperature system is also so much more simple. Boiling 100 degrees C and freezing is 0 degrees C.