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CheckYourMath.com has answers to your everyday Math questions. Online calculators and formulas are provided to calculate Length, Area, Weight/Mass, and Temperature conversions between US Customary Units, the Imperial System, and the Metric System

The Federal Communications Commission (FCC) is an independent US government agency, directly responsible to Congress, and regulates interstate and international communications by radio, television, wire, satellite and cable. FCC website resources inc...

Metric Conversion calculators, tables and formulas for temperature, length, area, volume and weight metric conversions.

Online Conversion is a resource for weights, measures, calculators, converters.

Convert measurement units for metric, imperial systems and more. Includes conversion charts, tables.

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Educational and entertaining items pertaining to physics, the mathematical sciences, and to mathematics in general.

Directions Magazine, the first regularly published online magazine covering geospatial technology.

This online unit conversion tool will help you convert measurement units anytime and solve homework problems quickly using metric conversion tables, SI units, and more.