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Compound Interest Amount Calculator

This calculator requires the use of Javascript enabled and capable browsers. This calculator is designed to calculate the total interest of a compound interest financial contract; the formulae for those calculations are below. This calculator supports the first 3 of them. Enter the values in the respective fields and click Calculate. If you wish to enter a fraction of a year, you must have a leading number. For instance, 1.5 years is valid and 0.5 years is also. However, .5 years is not.

Formulae for the various compound interest calculations...
Interest = Principal(1+(Rate/100))n Annual
Interest = Principal(1+(Rate/200))2n Semi-Annual
Interest = Principal(1+(Rate/400))4n Quarterly
Interest = Principal(1+(Rate/100))years * (1+(fraction(Rate/100))) Annual and fraction
Interest = Principal(1+(Rate1/100))*(1+(Rate2/100))*(1+(Rate3/100)) Different Annual Rate
Required Data Entry
Principle (P) Dollars
Rate (R) % Per Annum
Time (T) Units

Calculated Results
Interest (I) Dollars
Updated 8.15.11

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