Prefixes
The following prefixes can be prepended to any unit (without space in
between). Whenever some ambiguity arises, for example for the nuclear
magneton "muN", which could also mean micro
Newton, the first definition (without prefix, i.e. nuclear magneton) is
used. From version 1.5, the prefixes and the units can be spelled out
completely. Thus the micro Newton can be entered in several different forms:
"muNewton", "microN", "MicroNewton", ...
Factor |
Prefix |
Symbol |
Factor |
Prefix |
Symbol |
101 |
da |
deca |
10-1 |
d |
deci |
102 |
h |
hecto |
10-2 |
c |
centi |
103 |
k |
kilo |
10-3 |
m |
milli |
106 |
M |
mega |
10-6 |
mu |
micro |
109 |
G |
giga |
10-9 |
n |
nano |
1012 |
T |
tera |
10-12 |
p |
pico |
1015 |
P |
peta |
10-15 |
f |
femto |
1018 |
E |
exa |
10-18 |
a |
atto |
1021 |
Z |
zetta |
10-21 |
z |
zepto |
1024 |
Y |
yotta |
10-24 |
y |
yocto |
From version 1.53, the following binary prefixes used in computer storage
units are also available:
Ki = 210
(kibi as, e.g., in kibibyte for kilo binary byte) |
Pi = 250 (pebi) |
Mi = 220 (mebi) |
Ei = 260 (exbi) |
Gi = 230 (gibi) |
Zi = 270 (zebi) |
Ti = 240 (tebi) |
Yi = 280 (yobi) |
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