| Symbol | Name |
Factor | Example |
| y | yocto |
10-24
|
2 ym = 2 × 10-24 m = 0.000 000 000 000 000 000 000 002 meters
|
| z | zepto |
10-21
|
5 zm = 5 × 10-21 m = 0.000 000 000 000 000 000 005 meters
|
| a | atto |
10-18
|
4 am = 4 × 10-18 m = 0.000 000 000 000 000 004 meters
|
| f | femto |
10-15
|
5 fm = 5 × 10-15 m = 0.000 000 000 000 005 meters
|
| p | pico |
10-12
|
7 pF = 7 × 10-12 F = 0.000 000 000 007 farads
|
| n | nano |
10-9
|
5 nm = 5 × 10-9 m = 0.000 000 005 meters
|
| μ | micro |
10-6
|
6 μm = 6 × 10-6 m = 0.000 006 meters
|
| m | milli |
10-3
|
5 mm = 5 × 10-3 m = 0.005 meters
|
| c | centi |
10-2
|
4 cm = 4 × 10-2 m = 0.04 meters
|
| d | deci |
10-1
|
6 dm = 6 × 10-1 m = 0.6 meters
|
| da | deka | 10 | 2 dam = 2 × 10 m = 20 meters |
| h | hecto |
102
| 5 hl = 5 × 100 l = 500 liters |
| k | kilo |
103
|
1.6 kg = 1.6 × 103 g = 1600 grams
|
| M | Mega |
106
|
19 MW = 19 × 106 W = 19 000 000 Watts
|
| G | Giga |
109
|
3 GHz = 3 × 109 Hz = 3 000 000 000 Hertz
|
| T | Tera |
1012
|
2 TW = 2 × 1012 Watts = 2 000 000 000 000 Watts
|
| P | Peta |
1015
|
11 PHz = 3 × 1015 Hz = 11 000 000 000 000 000 Hertz
|
| E | Exa |
1018
|
4 Em = 4 × 1018 meters = 2 000 000 000 000 000 000 meters
|
| Z | Zeta |
1021
|
12 ZHz = 12 × 1021 Hz = 11 000 000 000 000 000 000 000 Hertz
|
| Y | Yota |
1024
|
21 Ym = 21 × 1024 meters = 2 000 000 000 000 000 000 000 000 meters
|
