| Name | Symbol | Base 10 Power | Short Scale Word | Long Scale Word | Is from SI | Unit System |
|---|---|---|---|---|---|---|
| zetta | Z | 21 | sextillion | trilliard | Yes | SI |
| zepto | z | -21 | sextillionth | trilliardth | Yes | SI |
| yotta | Y | 24 | septillion | quadrillion | Yes | SI |
| yocto | y | -24 | septillionth | quadrillionth | Yes | SI |
| tera | T | 12 | trillion | billion | Yes | SI |
| pico | p | -12 | trillionth | billionth | Yes | SI |
| peta | P | 15 | quadrillion | billiard | Yes | SI |
| none | none | 0 | one | Yes | SI | |
| nano | n | -9 | billionth | milliardth | Yes | SI |
| milli | m | -3 | thousandth | Yes | SI |