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

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