Master Converter, Version 2.10 Some utilities offer to do everything but fold your laundry. The program is preconfigured to convert more than 600 units in 33 categories. There are the categories you'd expect, such as speed, temperature, volume, length, and time.
Some categories are computer-related.
The program will also do simple tasks like converting numbers from one base to another, or from fractions to decimals and vice versa. Click to view screen shot. Currency is not one of the pre-configured categories, because exchange rates fluctuate constantly. But it's easy to add new categories as needed and to add or modify the units in a category. A table of metric prefixes can help you get your terminology right, and a built-in calculator is available for quick conversions.