Enter a dollar amount and years to convert that amount between. Uses Consumer Price Index to calculate cost of living changes.

Lists of dozens of types from Math and Science to Weight and Calories to mortgage and Loan calculators.

View the exchange rate between any two currencies for any date since January 1,1990.

Definition and conversion factors for most units of measurement.

Automatically calculates equivalent units of measure for area, density, force, mass, etc.

Calculate how long it will take to pay off a loan and how much it will actually cost you.

Links arranged by subject. Quick and easy to use.

Free online Math and Scientific calculators from Math.com.

Online business calculators for mortgages, other loans, CD and investments, debt and credit, tax, retirement, etc. Very handy free services from the Mortgage Loan company.

Automated math problem solver. Submit a question (including factoring, graphing, quadratics, inequalities, basic calculus, matrices, and more) and the answer is calculated using Mathematics.

Compare cost of living in US and international cities by entering a salary earned in one city and to calculate what salary would have the same buying power in another.