Units and systems of measure over time will be explored here.

Many other useful conversion factors can be found at http://www.wsdot.wa.gov/Metrics/factors.htm

Units and systems of measure

Table of Power of Ten Prefixes
Power of 10 Units Prefix Reciprocal Prefix
3 thousands kilo- milli-
6 millions mega- micro-
9 billions giga- nano-
12 trillions tera- pico-
15 quadrillions peta- femto-
18 quintillions exa- atto-
21 sextillions zetta- zepto-
24 septillions yotta- yocto-

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Old_tools.units updated December 14th, 1997
© 1996,1997 Philip A. Cannon All Rights Reserved