Prefixes used in SI units
*giga- G 1,000,000,000 109
*mega - M 1,000,000 106
*kilo - k 1,000 103
*deci- d 0.1 10-1
*centi- c 0.01 10-2
*milli- m 0.001 10-3
*micro- m 0.000001 10-6
*nano- n 0.000000001 10-9