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Decimal System Prefixes
Prefix Names of Multiples and Submultiples of Units
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| Prefix | Measure | Decimal equivalent | Exponential expression |
| y - yocto | 0.000 000 000 000 000 000 000 001 | E-24 | |
| z - zepto | 0.000 000 000 000 000 000 001 | E-21 | |
| a - atto | one-quintillionth | 0.000 000 000 000 000 001 | E-18 |
| f - femto | one-quadrillionth | 0.000 000 000 000 001 | E-15 |
| p - pico | one-trillionth | 0.000 000 000 001 | E-12 |
| n - nano | one-billionth | 0.000 000 001 | E-9 |
| μ - micro | one-millionth | 0.000 001 | E-6 |
| m - milli | one-thousandth | 0.001 | E-3 |
| c - centi | one-hundredth | 0.01 | E-2 |
| d - deci | one-tenth | 0.1 | E-1 |
| Uni | one | 1 | E0 |
| d - deka | ten | 10 | E1 |
| h - hecto | one hundred | 100 | E2 |
| k - kilo | one thousand | 1 000 | E3 |
| M - mega | one million | 1 000 000 | E6 |
| G - giga | one billion | 1 000 000 000 | E9 |
| T - tera | one trillion | 1 000 000 000 000 | E12 |
| P - peta | 1 000 000 000 000 000 | E15 | |
| E - exa | 1 000 000 000 000 000 000 | E18 | |
| Z - zetta | 1 000 000 000 000 000 000 000 | E21 | |
| Y - yotta | 1 000 000 000 000 000 000 000 000 | E24 |
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Related Topics
- Basics - Basic Information as SI-system, Unit converters, Physical constants...
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Related Documents
- British Imperial System - A principal system of units
- SI System - An introduction to the SI-system
