| Prefix |
Symbol |
Multiplier |
Exponent |
| yotta |
Y |
1,000,000,000,000,000,000,000,000 |
1024 |
| zetta |
Z |
1,000,000,000,000,000,000,000 |
1021 |
| exa |
E |
1,000,000,000,000,000,000 |
1018 |
| peta |
P |
1,000,000,000,000,000 |
1015 |
| tera |
T |
1,000,000,000,000 |
1012 |
| giga |
G |
1,000,000,000 |
109 |
| mega |
M |
1,000,000 |
106 |
| kilo |
k |
1,000 |
103 |
| hecto |
h |
100 |
102 |
| deca |
da |
10 |
101 |
| deci |
d |
0.1 |
10-1 |
| centi |
c |
0.01 |
10-2 |
| milli |
m |
0.001 |
10-3 |
| micro |
ยต |
0.000001 |
10-6 |
| nano |
n |
0.000000001 |
10-9 |
| pico |
p |
0.000000000001 |
10-12 |
| femto |
f |
0.000000000000001 |
10-15 |
| atto |
a |
0.000000000000000001 |
10-18 |
| zepto |
z |
0.000000000000000000001 |
10-21 |
| yocto |
y |
0.000000000000000000000001 |
10-24 |