January 6, 2010 – Speed Calculator online tool has beed added. The tool allows you to calculate average speed having time and distance or calculate distance having time and speed or compute time having speed and distance.

December 28, 2009 – New Year gifts – Calendar 2010 with marked holidays and Printable Calendar 2010 have been added

April 13, 2009 – unitarium.com blog has been born.

April 09, 2009 – Time Unit Converter has been added. it supports nanoseconds to millenium (thru secondes, minutes, hours, days, weeks, years, …) units.

February 02, 2009 – Energy Unit Converter has been added.

January 23, 2009 – Time Calculator has been launched. It is online tool that allows add or substract hours (minutes, seconds, millisecond) given in hh:mm:ss.ms or decimal format.

January 7, 2009 – data capacity converter has been added. It supports bytes, kilobytes, megabytes, gigabytes, terabytes and other units.

January 6, 2009 – Font Size Conversion Tool (Typographic units conversion) has been added. This tool allows to convert font type sizes given in pica, didot, post-script systems as well as metric and imperial system of measurement.

September 8, 2008 – pressure converter has been added. It supports pascal, kilopascal, hectopascal, megapascal, bar, technical and standard athmosphere, torr, millimeters and inches of mercury, psi, newton per sq. meter, kilogram per sq. meter.

July 31, 2008 – special service focused on Beijing Olympic Games has been launched.  Olympic Games began August 8, 2008 at 08:08:08 CST (China Standard Time)

July 25, 2008 – unitarium.com comes to the world with six converters (area, capacity, length, mass, speed, temperature) and information about si-prefixes and si-units

July 22, 2008 – unitarium.com domain has been bought.