Calculators On-Line Center
22,735+ calculators listed alphabetically by name.
Cost of Living Calculator
Presents the cost-of-living in specific years and localities.
Inflation Calculator
Compares value of U.S. currency between user-specified years.
Online Conversion
Convert just about anything to anything else. Over 5,000 units, and 50,000 conversions.
Currency Converter
From Oanda.com
Currency Site
Most current exchange rate for 164 currencies. Use the Quick Converter box, top left hand corner.
Historical Currency Table
Will exchange currency using the rate on any day since January 1, 1990.
How much is it worth today?
"Comparing the purchasing power of money in the United States (or colonies) from 1665 to any other year including the present."
Interactive Currency Table
Lets you view cross-rated tables of several dozen major currencies in the base currency of your choice.
Universal Currency Converter
This site will convert any amount of money from one type of currency into another.