Conversion Calculator Have you ever wondered how many yards the 100 meter dash is, or wanted to figure out how many inches, or centimeters your 23 mile commute is.  Well OK maybe I'm the only one interested in some of these trivial bits of information, but we often find it necessary to make conversions between different units of measurement.  Worldwide Metric has made this process much easier with there easy online calculator.  It includes  conversions for length, weight, volume, pressure, and temperature.