The prefix symbols |
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Symbol (c/s) |
Display Name |
Print Symbol |
value |
Y |
yotta |
Y |
1 × 1024 |
Z |
zetta |
Z |
1 × 1021 |
E |
exa |
E |
1 × 1018 |
P |
peta |
P |
1 × 1015 |
T |
tera |
T |
1 × 1012 |
G |
giga |
G |
1 × 109 |
M |
mega |
M |
1 × 106 |
k |
kilo |
k |
1 × 103 |
h |
hecto |
h |
1 × 102 |
da |
deka |
da |
1 × 101 |
d |
deci |
d |
1 × 10-1 |
c |
centi |
c |
1 × 10-2 |
m |
milli |
m |
1 × 10-3 |
u |
micro |
μ |
1 × 10-6 |
n |
nano |
n |
1 × 10-9 |
p |
pico |
p |
1 × 10-12 |
f |
femto |
f |
1 × 10-15 |
a |
atto |
a |
1 × 10-18 |
z |
zepto |
z |
1 × 10-21 |
y |
yocto |
y |
1 × 10-24 |
The special prefix symbols for powers of 2 NOTE These symbols are for use in information technology as proposed by the IEEE. |
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Symbol (c/s) |
Display Name |
Print Symbol |
value |
Ki |
kibi |
Ki |
1 × 10241 |
Mi |
mebi |
Mi |
1 × 10242 |
Gi |
gibi |
Gi |
1 × 10243 |
Ti |
tebi |
Ti |
1 × 10244 |
Pi |
pebi |
Pi |
1 × 10245 |
Ei |
exbi |
Ei |
1 × 10246 |
Zi |
zebi |
Zi |
1 × 10247 |
Yi |
yobi |
Yi |
1 × 10248 |