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Plethora is a measurement unit conversions calculator that is more powerful than ANY unit conversion program on any platform or online conversion utility available! It is an ideal tool for any person, business, or organization needing to carry out measurement conversions of any type.

Plethora is also an excellent educational reference for all levels, with on-line bibliography and sections on the history and methodology of measurement, as well as built in definitions for most units and unit groupings.

What's New

Version 1.1:
  • Fixed bug on startup
  • Increased font sizes


OS X 10.4 or later

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5 1


Current Version (1.x)


Downloads 123
Version Downloads 123
License Demo
Date 03 Jun 2013
Platform OS X / PPC 32 / Intel 32
Price $9.95