DMS and Radians
I didn’t have a calculator for converting from radians to Degrees Minutes Seconds (e.g. 34-55-04), and also in the opposite direction. Initially, I thought I would do this with PHP, but I could do it instantaneously with Javascript instead.
Feel free to give it a try, if you enter an approximation of π/2 ≅ 1.570796, you will get a value close to 90˚.
EDIT 2012-09-23: The JavaScript to convert this has been removed. You can ask Google “6 degrees in radians” and get an answer that way, or ask Wolfram Alpha.