Measurement

» A Dictionary of Units
   A summary of most of the units of measurement to be found in use around the world today (and a few of historical interest), together with the appropriate conversion factors needed to change them into a standard unit.

   
   http://www.cleavebooks.co.uk/dictunit/

» Apples4theteacher.com
   Measure the teddy bears game.

   
   http://www.apples4theteacher.com/measure.html

» Conversion Calculator
   A simple calculator to convert between various units.

   
   http://kevinhaw.com/convert.shtml

» Convert-me.Com
   Interactive calculators for many common and exotic measurement systems, including metric, Ancient Greek, Roman, and old Russian.

   
   http://www.convert-me.com/en/

» Convertworld
   Interactive multi-lingual conversion calculator for a wide variety of units.

   
   http://www.convertworld.com/

» CyberSleuth: Units of Measurements Worksheets
   Twenty-three printable worksheets for elementary school-aged children. Focuses primarily on conversion of units of length.

   
   http://cybersleuth-kids.com/sleuth/Math/Math_Worksheets/Units_of_Measurement/

» FAQ: How do I read a ruler?
   Instructions on how to use metric and English rulers.

   
   http://www.onlineconversion.com/faq_05.htm

» Funbrain.com
   Measurement game - Game which has several levels of difficulty for both English and metric rulers.

   
   http://www.funbrain.com/measure/

» GCSE Maths: Measurement
   Includes length, area and volume and the use of prefixes in units. With worked examples and animations.

   
   http://www.gcse.com/maths/measurement.htm

» How Many?
   A dictionary of units of measurement: explanations of the metric system, System Internationale (SI), English customary system, and other modern measuring systems. Plus extensive links to other measurement-related Internet resources.

   
   http://www.unc.edu/~rowlett/units/index.html

» How To Read A Ruler
   Article describes all of those little lines and markings.

   
   http://www.woodzone.com/articles/Read_A_Ruler.htm

» Jack's Math
   Provides several methods for determining length, width and height.

   
   http://www.nps.gov/archive/whmi/educate/ortrtg/11or1.htm

» Learning About Time
   History and description of clocks with lessons on telling the time. Includes an interactive tutor. [Requires Java]

   
   http://arcytech.org/java/clock/

» Measurement Worksheets
   Features printable worksheets. Includes English and Metric System pages.

   
   http://www.edhelper.com/measurement.htm

» Measuring Angle and Distance with your Thumb
   How to use body parts to estimate measurements.

   
   http://www.vendian.org/mncharity/dir3/bodyruler_angle/

» Metric 4 US
   A site promoting the metric system which argues why metric is better and English is worse. Provides an English-metric online calculator.

   
   http://www.metric4us.com/

» Metric Conversion
   Java metric conversion calculator for length, weight, pressure, and volume.

   
   http://www.worldwidemetric.com/metcal.htm

» Metric Conversion Chart
   Online metric conversion calculator includes metric, US customary and Imperial unit conversions.

   
   http://www.sciencemadesimple.com/conversions.html

» Metric Conversion Tables
   Conversion factors and online calculators for metric and imperial units.

   
   http://www.metric-conversion-tables.com/

» Metric Measures
   Offers equivalents for common measurements, plus how metric units are used in sports and the kitchen.

   
   http://www.nist.gov/public_affairs/kids/metric.htm

» Online Units Conversion
   Gives equal values for areas, volumes, circle measurements, computer storage, currencies, distance and length, energy, fuel consumption, power, pressure, speed, temperature, time, torque, and weights.

   
   http://convertplus.com/

» Origins of Measurements
   Compares units of ancient times with modern ones.

   
   http://www.iofm.net/community/kidscorner/maths/origin.htm

» Percent Change Calculator
   Measures the difference in values using percentages. Includes bar graphs with the answer.

   
   http://www.percent-change.com/

» Temperature Converter Fahrenheit Celsius (Centigrade)
   A temperature converter for Celsius and Fahrenheit.

   
   http://www.albireo.ch/temperatureconverter/

» The Modern Metric System
   Dictionary of metric units explaining the principles and history of the system.

   
   http://web8.ehost-services.com/cdkaese/metre/

» The Ruler Game
   Timed game will test how quick you can read a ruler.

   
   http://www.rickyspears.com/rulergame/

» Unit Conversions
   Online conversions from physics units to other physics units. Includes a comprehensive set of units with definitions.

   
   http://www.chemie.de/tools/units.php3?language=e