Table of SI Prefixes
| Name | Symbol | Base 10 | Decimal | Year |
| quetta | Q | 1030 | 1000000000000000000000000000000 | 2022 |
| ronna | R | 1027 | 1000000000000000000000000000 | 2022 |
| yotta | Y | 1024 | 1000000000000000000000000 | 1991 |
| zetta | Z | 1021 | 1000000000000000000000 | 1991 |
| exa | E | 1018 | 1000000000000000000 | 1975 |
| peta | P | 1015 | 1000000000000000 | 1975 |
| tera | T | 1012 | 1000000000000 | 1960 |
| giga | G | 109 | 1000000000 | 1960 |
| mega | M | 106 | 1000000 | 1873 |
| kilo | k | 103 | 1000 | 1795 |
| hecto | h | 102 | 100 | 1795 |
| deca | da | 101 | 10 | 1795 |
| 100 | 1 | |||
| deci | d | 10−1 | 0.1 | 1795 |
| centi | c | 10−2 | 0.01 | 1795 |
| milli | m | 10−3 | 0.001 | 1795 |
| micro | μ | 10−6 | 0.000001 | 1873 |
| nano | n | 10−9 | 0.000000001 | 1960 |
| pico | p | 10−12 | 0.000000000001 | 1960 |
| femto | f | 10−15 | 0.000000000000001 | 1964 |
| atto | a | 10−18 | 0.000000000000000001 | 1964 |
| zepto | z | 10−21 | 0.000000000000000000001 | 1991 |
| yocto | y | 10−24 | 0.000000000000000000000001 | 1991 |
| ronto | r | 10−27 | 0.000000000000000000000000001 | 2022 |
| quecto | q | 10−30 | 0.000000000000000000000000000001 | 2022 |
Metric prefix. (2022, December 21). In Wikipedia. https://en.wikipedia.org/wiki/Metric_prefix