Graffix has released measurement and conversion utility Conversion 3.0 for Mac.
Measurements for conversion range from temperature to hectometers. The software has a menu for grouping items application-wide - so items from the Help or Apple menus can be grouped together, for example. Menus can also be customized and exported to an external file to be saved and shared by others.
To software, which is also compatible with OS 9.2, can be registered online for $10. A "lite" version is available at no cost, however, this doesn't have all the features of the full version. Upgrades from previous versions cost $5.