We all have a few calculators - on our cell phones, computers, and perhaps just lying around the house or office. Some of these are super specialized (calculating wind chill is not something I do everyday), while others are useful in daily life (converting from cups to tablespoons comes in handy).
This calculator lets you compare the cost of living in American cities, and compare two side-by-side, including breakdowns for housing, taxes, food, etc.
A collection of calculators for just about every conversion possible, including cooking conversions, international clothing sizes, length units, and much more.