Other
All math.com: Us/metric Conversion Tables
Convert metric measurements to U.S. Measurements and the reverse, too. Easy to follow tables have sections for area, length, mass,temperature and volume.
Other
Online Conversion
Conversion calculators galore! Convert just about anything from one measureable unit into another measureable unit here with over two dozen calculators. Each of the links is specific to a measureable quantity. Some examples include...
Texas Education Agency
Texas Gateway: 1.2 Physical Quantities and Units
By the end of this section, you will be able to do the following: Perform unit conversions in both SI and English units, Explain the most common prefixes of SI units, and be able to write them in scientific notation.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Metrics in the Home and in the Store
In this lesson plan site, students will compare SI unit (metric) measurements of common household items and their English equivalents.
California State University
Csudh: Chemistry: Converting Distance
Convert distance measures between the English (inches, feet and yards) and metric (mm,cm,meters,km). It is intended to help with both your math skill and your understanding of the metric system.
Other
Bob's Byway: Glossary of Poetic Terms
Calling itself "unique," Bob's is easy to use, with cross-links throughout, phonetic pronunciation guides when necessary, and many examples and quotations. Click on the letter and scroll for the word.