Metric Prefixes

 

yotta- (Y-)	1024	1 septillion
zetta- (Z-)	1021	1 sextillion
exa- (E-)	1018	1 quintillion
peta- (P-)	1015	1 quadrillion
tera- (T-)	1012	1 trillion
giga- (G-)	109	1 billion
mega- (M-)	106	1 million
kilo- (k-)	103	1 thousand
hecto- (h-)	102	1 hundred
deka- (da-)**	10	1 ten
deci- (d-)	10-1	1 tenth
centi- (c-)	10-2	1 hundredth
milli- (m-)	10-3	1 thousandth
micro- (µ-)	10-6	1 millionth
nano- (n-)	10-9	1 billionth
pico- (p-)	10-12	1 trillionth
femto- (f-)	10-15	1 quadrillionth
atto- (a-)	10-18	1 quintillionth
zepto- (z-)	10-21	1 sextillionth
yocto- (y-)	10-24	1 septillionth