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Unit Conversions, Weights,& Measures and Periodic Table

Unit Conversions, Weights,& Measures and Periodic Table

A continously expanding collection of of converters, units and measures, data tables. The converters provide not only information such as "how many miles in a light year", the difference between US fluid and dry gallons, the differences between both these and the UK gallon, but also gives the invaluable background on units, their origin and definitions. If you ever need to know what a "Wey" is or ask "What on Earth is a Tod?", this is the place to look. Furthermore, this site also provides a list of physical constants and their values, a link specializing in old English units, and a periodic table.


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John Walkup
John Walkup (Staff)
17 years ago
The largest, most comprehensive, source of unit conversions I have seen. The
thumbwheel mouse controller is easy to use, and the database is enormous.