I love qalc. It covers two-thirds of the use cases of Wolfram Alpha without ever connecting to the Internet. If a command line isn't for you, qalc also comes with a GUI interface called Qalculate. (I was inspired to make this because it easily handled "540 kUSD -> MHKD"!)
2 years ago ยท ๐ superfxchip, smokey, johano