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.
Better Lesson
Better Lesson: Where Would It Be?
A lesson to help conceptualize fractions as numbers. Students work to see fractions as a part of a whole and a length.
Other
Nanozone: Nanoconverter
Use the nanoconverter to convert inches, feet, or miles (or millimeters, centimeters, or meters) into nanometers.
Calculator Soup
Calculator Soup: Cubic Yards Calculator
Use this calculator to calculate cubic yards volume for a variety of different areas. Enter measurements in US units or metric units. Calculate volume from your measurements in inches (in), feet (ft), yards (yd), centimeters (cm), or...
Science Made Simple
Science Made Simple: Online Metric Converter
Practice converting English units of measurement to metric units using this tool.
Other
Science Made Simple: Area Conversions
This site, which is provided for by Science Made Simple, allows you to enter an amount into an area conversion calculator.