WEIGHTS AND MEASURES RESOURCES
- Conversion of Units - Convert temperature, measurement, heat and energy units, as well as time, velocity and currency.
- Convert It!
- Currency Calculator
- Dictionary of Units of Measurement
- Distantias - "Calculate driving distances between two points, calculate fuel costs, flight distances from airport to airport, distances in a straight line cycle trip distances, travel and public transport distance and journey times between two points and more."
- Good Calculators - "This website provides a variety of online calculators, some math, engineering and conversion calculators."
- Greenwich Mean Time (GMT)
- How Far Is It? - - distances between 500 cities worldwide plus very basic information about each location
- Measurements Converter - friendly JavaScript interface converts length, weight, area, speed, temperature and more, into different units and unit systems.
- Megaconverter
- Metric Conversion Card - Use this easy chart to convert inches to centimeters, pounds to kilograms, Fahrenheit to Celsius, and more.
- Metric Conversions - "Metric Conversion calculators, tables and formulas for temperature, length, area, volume and weight metric conversions."
- NIST Time and Frequency Division - develops and operates standards of time and frequency
- Online Unit Conversion - "International Unit Conversion Calculator - Free unit conversion calculator for easy measurement conversion. International Unit Converter allows metric measurement conversions in many categories."
- Periodic Table of the Elements
- Roman Numeral Converter - Visual Roman Numeral Converter
- Royal Society of Chemistry: Visual Elements Periodic Table - "The Royal Society of Chemistry’s interactive periodic table which includes Murray Robertson’s Visual Elements artwork. Hover over the elements to see key facts and the supply risk which highlights elements where limited abundance may hinder the production of new technologies. Click the elements for interesting facts, atomic data, isotopes and more."
- Unit Conversion Factors
- United States Naval Observatory - The United States Naval Observatory (USNO) provides a wide range of astronomical data and products, and serves as the official source of time for the U.S. Department of Defense and a standard of time for the entire United States.
- Universal Currency Converter, The - allows you to perform interactive foreign exchange rate conversion on the Internet.
- U.S. Metric Association (USMA) - national non-profit organization, founded in 1916, which advocates U.S. conversion to the International System of Units (SI), also called the modern metric system.
- WWW Unit Converter
- Walk Through Time, A - the evolution of time measurement.
- What time is it? - current time, from the US Naval Observatory Master Clock.
- World Time Zones Maps with Current Time
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