Important Metric Prefixes
Prefix |
Abbreviation |
Meaning |
tera- |
T |
x 1012 |
giga-* |
G |
x 109 |
mega- |
M |
x 106 |
kilo- |
k |
x 103 |
deci- |
d |
x 10-1 |
centi- |
c |
x 10-2 |
milli- |
m |
x 10-3 |
micro- |
µ |
x 10-6 |
nano-* |
n |
x 10-9 |
pico-* |
p |
x 10-12 |
*In older literature, certain double prefixes are used:
kilomega (kM) for 109; millimicro (mµ) for 10-9;
micromicro (µµ) for 10-12.
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