| Name | Symbol | Base 10 Power | Short Scale Word | Long Scale Word | Is from SI | Unit System |
|---|---|---|---|---|---|---|
| yocto | y | -24 | septillionth | quadrillionth | Yes | SI |
| zepto | z | -21 | sextillionth | trilliardth | Yes | SI |
| atto | a | -18 | quintillionth | trillionth | Yes | SI |
| femto | f | -15 | quadrillionth | billiardth | Yes | SI |
| pico | p | -12 | trillionth | billionth | Yes | SI |
| nano | n | -9 | billionth | milliardth | Yes | SI |
| micro | µ | -6 | millionth | Yes | SI | |
| milli | m | -3 | thousandth | Yes | SI | |
| centi | c | -2 | hundredth | Yes | SI | |
| deci | d | -1 | tenth | Yes | SI |