• Universal Currency Converter - An easy way to determine the current exchange rate between major international currencies.  [Click Here]
• US News & World Report Currency Calculator  [Click Here]
• How Far Is It? - Use this site to determine "as the crow flies" or approximate distances between locations in the United States and elsewhere. Major foreign cities are also included.  [Click Here]
• Online Conversions - Convert just about anything to anything else. Over 5,000 units, and 50,000 conversions.  [Click Here]
• calculator.com - Provides free access to calculators in fifteen categories including scientific, financial, time, temperature, etc.  [Click Here]
• Martindale's Calculators On-Line - Contains over 17,000 calculators of all kinds. Especially useful for math, science, and engineering needs.  [Click Here]
• Inflation Conversion Factors for Dollars 1665 to the Present - To convert the value of the dollar in any year from 1665 onward to a current dollar rate, a chart is provided with an annual conversion rate number.  [Click Here]
• What's a Dollar Worth? - Calculate the value of the dollar for any year from 1913 to the present, as based on the Consumer Price Index. Also has estimates from 1800 to present.  [Click Here]
• The Salary Calculator - Provides a calculator to compare salaries, cost of living, relocation expenses, and real estate prices in cities across the U.S.  [Click Here]
• The 10,000 Year Calendar - A perpetual calendar you can use to check days of the week for dates in the past or in the future.  [Click Here]

Weights and Measures

• Common Equivalent Weights and Measures - From the University of California Berkeley, a table of commonly used weights and measures with their metric and U.S. equivalents. For the actual conversion relationship between U.S units and metric (or International System) units, use a list of conversion factors maintained by the Washington State DOT.  [Click Here]
• Measure 4 Measure - "A collection of interactive sites on the Web that estimate, calculate, evaluate, translate, etc...." Divided into Science/Math, Health, Finance, and Everything Else.  [Click Here]