The metric system is a system of measurement based on powers of ten. The table below lists the prefixes and abbreviations for the more commonly used powers of ten.
| Value | Prefix | Symbol | Value | Prefix | Symbol | |
|---|---|---|---|---|---|---|
| 1018 | exa- | E | 10-18 | atto- | a | |
| 1015 | peta- | P | 10-15 | femto- | f | |
| 1012 | tera- | T | 10-12 | pico- | p | |
| 109 | giga- | G | 10-9 | nano- | n | |
| 106 | mega- | M | 10-6 | micro- | µ | |
| 103 | kilo- | k | 10-3 | milli- | m | |
| 102 | hecto- | h | 10-2 | centi- | c | |
| 10 | deca- | da | 10-1 | deci- | d |
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