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TenLinks Sites
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  1. Google - type math equation or conversion right into Google (example: 56*45 or "4 liters in cubic inches"
  2. A Dictionary of Units - information about most of units of measurement, plus conversion factors needed to change them into SI units
  3. Unit Converters.net - list of converters like engineering, heat, fluid, light, electricity, magnetism, radiology, more
  4. How Many? - dictionary of units of measurement, by Russ Rowlett
  5. EngVert - scientific unit conversion program pre-configured to convert units, from G&P Engineering Software
  6. Quad-Lock Unit Converter - freeware tool for unit conversions
  7. ESBUnitConv - unit conversion tool, covers about 613 units in 21 different measurement categories Free
  8. WinConverter - unit conversion software suitable for students of engineering, physics, sciences, technical subjects
  9. Measurement Units - reference to globally agreed system of units, with seven base units, from National Physical Laboratory
  10. Wyzant - information about common English, metric, universal measurement units, also includes English to English conversions