B.3.2 Prefixes
| The prefix symbols | |||
|---|---|---|---|
| Symbol (c/s) | Display Name | Print Symbol | value |
| Y | yotta | Y | 1 × 1024 |
| Z | zetta | Z | 1 × 1021 |
| E | exa | E | 1 × 1018 |
| P | peta | P | 1 × 1015 |
| T | tera | T | 1 × 1012 |
| G | giga | G | 1 × 109 |
| M | mega | M | 1 × 106 |
| k | kilo | k | 1 × 103 |
| h | hecto | h | 1 × 102 |
| da | deka | da | 1 × 101 |
| d | deci | d | 1 × 10-1 |
| c | centi | c | 1 × 10-2 |
| m | milli | m | 1 × 10-3 |
| u | micro | μ | 1 × 10-6 |
| n | nano | n | 1 × 10-9 |
| p | pico | p | 1 × 10-12 |
| f | femto | f | 1 × 10-15 |
| a | atto | a | 1 × 10-18 |
| z | zepto | z | 1 × 10-21 |
| y | yocto | y | 1 × 10-24 |
| Symbol (c/s) | Display Name | Print Symbol | value |
|---|---|---|---|
The special prefix symbols for powers of 2 NOTE These symbols are for use in information technology as proposed by the IEEE. | |||
| Ki | kibi | Ki | 1 × 10241 |
| Mi | mebi | Mi | 1 × 10242 |
| Gi | gibi | Gi | 1 × 10243 |
| Ti | tebi | Ti | 1 × 10244 |
| Pi | pebi | Pi | 1 × 10245 |
| Ei | exbi | Ei | 1 × 10246 |
| Zi | zebi | Zi | 1 × 10247 |
| Yi | yobi | Yi | 1 × 10248 |