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

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Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. Lessons are written with the struggling student in mind, and stress the practicalites over the technicalities. Links and other resources als...

The Khan Academy is a not-for-profit 501(c)(3) with the mission of providing a world-class education to anyone, anywhere. Despite being the work of one man, Salman Khan, this 1600+ video library is the most-used educational video resource as measure...

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

Computer Science Department at the University of Texas at Austin

Chemistry is the study of matter and energy and the interactions between them. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get chemistry homework help with worked example ...

Perform conversions between 2100 various units of measure in more than 70 categories.