How Many Micrometers Are There In 3.0 Centimeters?

I believe a micrometer is a millionth of a meter.  A centimeter is a hundredth of a meter.  Soooo
1,00,000 / 100 = 10,000 centimeters in a micrometer, x 3 cm.  = 30,000
So there are 30,000 micrometers in 3 centimeters.