Prefix |
Base 10 |
Decimal |
Short Scale |
Long Scale |
yotta |
Y |
1024 |
1 000 000 000 000 000 000 000 000 |
septillion |
quadrillion |
zetta |
Z |
1021 |
1 000 000 000 000 000 000 000 |
sextillion |
trilliard |
exa |
E |
1018 |
1 000 000 000 000 000 000 |
quintillion |
trillion |
peta |
P |
1015 |
1 000 000 000 000 000 |
quadrillion |
billiard |
tera |
T |
1012 |
1 000 000 000 000 |
trillion |
billion |
giga |
G |
109 |
1 000 000 000 |
billion |
milliard |
mega |
M |
106 |
1 000 000 |
million |
kilo |
k |
103 |
1 000 |
thousand |
hecto |
h |
102 |
100 |
hundred |
deca |
da |
101 |
10 |
ten |
|
100 |
1 |
one |
deci |
d |
10−1 |
0.1 |
tenth |
centi |
c |
10−2 |
0.01 |
hundredth |
milli |
m |
10−3 |
0.001 |
thousandth |
micro |
μ |
10−6 |
0.000 001 |
millionth |
nano |
n |
10−9 |
0.000 000 001 |
billionth |
milliardth |
pico |
p |
10−12 |
0.000 000 000 001 |
trillionth |
billionth |
femto |
f |
10−15 |
0.000 000 000 000 001 |
quadrillionth |
billiardth |
atto |
a |
10−18 |
0.000 000 000 000 000 001 |
quintillionth |
trillionth |
zepto |
z |
10−21 |
0.000 000 000 000 000 000 001 |
sextillionth |
trilliardth |
yocto |
y |
10−24 |
0.000 000 000 000 000 000 000 001 |
septillionth |
quadrillionth |