Tables showing metric units and their equivalents can be found on dictionary websites such as Merriam Webster, science- and math-oriented websites, and cooking websites. Math and science textbooks frequently have charts in the back of the book along with other reference materials.
College websites or private sites devoted to subjects including math and science provide tables and conversion charts showing metric measurements and equivalent units. Printable versions are often available. Conversion calculators can also be found on many of these sites and can be used for quick conversions within metric or between metric and standard units.
Many math and science textbooks provide metric charts and conversion tables in their reference sections. Some have charts and tables printed on the inside of their front and back covers for easy reference.