Lesson 2

 

Metric Conversion Factors

The relationships between the different metric units can be used as conversion factors. For example, if you need to change a measured value from mg to g, you can multiply by the conversion factor of 1 g over 1000 mg.

45 mg  x      1 g   
1000 mg		 = 0.045 g

To change a value from g to mg multiply by the conversion factor of 1000 mg over 1 g.

3.25 g  x 1000 mg
     1 g		 = 3250 mg

As you become familiar with metric units, you will be able to move the decimal point back and forth the proper number of places to make metric conversions, rather than using this longer method of multiplying by 100 or 1,000 or dividing by those numbers.

45 mg = 0.045 g
<<<		 3.25 g = 3250 mg
  >>>

Now, try the quick quiz on metric conversions. Then continue with metric-American conversions.