OK, maybe you guys living in the US don’t need any of the following resources as much or as often as I do – but I thought I’d share them.
Weight: http://www.onlineconversion.com/weight_common.htm (convert your weight into kilograms – it’s the quickest diet ever!)
Distance: http://www.onlineconversion.com/length_all.htm (they differentiate between Midwestern, Eastern and Southern block)
Related but different:
World Time Zone: http://www.worldtimezone.net/
International Calling Codes: http://www.countrycallingcodes.com/