Khan Academy
Khan Academy: Convert Units Word Problems (Metric)
Solve word problems that involve converting between metric measures of distance, volume, and mass, as well as measures of time. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Math Aids
Math Aids: Measurement Worksheets
Great resource to practice and strengthen math skills pertaining to measurement. Math worksheets are printable, may be customized, and include answer keys.
University of Waterloo (Canada)
University of Waterloo: Metric 5 E Metric Conversions
Practice with metric conversions.