Name |
Prefix |
Symbol |
Power of ten |
septillion |
yotta |
Y |
24 |
sextillion |
zetta |
Z |
21 |
quintillion |
exa |
E |
18 |
quadrillion |
peta |
P |
15 |
trillion |
tera |
T |
12 |
billion |
giga |
G |
9 |
million |
mega |
M |
6 |
thousand |
kilo |
k |
3 |
hundred |
hecto |
h |
2 |
ten |
deca |
da |
1 |
tenth |
deci |
d |
-1 |
hundredth |
centi |
c |
-2 |
thousandth |
milli |
m |
-3 |
millionth |
micro |
µ (u) |
-6 |
billionth |
nano |
n |
-9 |
trillionth |
pico |
p |
-12 |
quadrillionth |
femto |
f |
-15 |
quintillionth |
atto |
a |
-18 |
sextillionth |
zepto |
z |
-21 |
septillionth |
yocto |
y |
-24 |