Sometimes you have to convert a number into something else. That can be something like inches into centimeters or standard time into military time. This handy dandy list shows websites that will handle these conversions and many others for you.
Convert one type of measurement into another (e.g. inches into cm)
Convert Across Time Zones:
Convert Standard Time into Military Time:
Convert Roman Numerals
Even though there are multiple ways to convert Roman Numerals that don’t add up to the same numbers this converts from the most standard way. (Honestly, I know people think they look cool, but if you’re actually trying to convey information, why would you use them?):
Convert value of money
From Two Different Points in Time –
For essays on how the process works and its accuracy:
For US dollar conversion between two years (this is my favorite such calculator tool, with the most information):
Convert Currency Across Countries:
UPDATED August 26 2017: I added the Roman Numeral converter.
Sarah S. Uthoff is the main force behind Trundlebed Tales fighting to bring the History, Mystery, Magic and Imagination of Laura Ingalls Wilder and other greats of children’s literature and history to life for a new generation.Attend one of her programs, schedule one yourself, watch her videos, listen to her podcast, and find her on Facebook, Twitter, Google+,LinkedIn, and Academia.edu. She is currently President of the Laura Ingalls Wilder Legacy and Research Association. Professionally she is a reference librarian at Kirkwood Community College and director of the Oxford (Iowa) Public Library.