| Name | Symbol | Base 10 Power | Short Scale Word | Long Scale Word | Is from SI | Unit System |
|---|---|---|---|---|---|---|
| atto | a | -18 | quintillionth | trillionth | Yes | SI |
| yotta | Y | 24 | septillion | quadrillion | Yes | SI |
| yocto | y | -24 | septillionth | quadrillionth | Yes | SI |
| zetta | Z | 21 | sextillion | trilliard | Yes | SI |
| zepto | z | -21 | sextillionth | trilliardth | Yes | SI |
| deca | da | 1 | ten | Yes | SI | |
| deci | d | -1 | tenth | Yes | SI | |
| kilo | k | 3 | thousand | Yes | SI | |
| milli | m | -3 | thousandth | Yes | SI | |
| tera | T | 12 | trillion | billion | Yes | SI |