Compound Interest Calculator

#What is compound interest?

Interest on an initial amount rolled into a new amount and the process is repeated as required.


Hopefully compound interest is working in your favour: e.g.: your savings/retirement accounts to help you make money.

Sometimes it is to your disadvantage, credit cards and loans being particularly dangerous as you can lose money quickly.

(Alpha - Work in progress)

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  • Using large decimals for accuracy. A future version may change to decrease calculation time.
  • Currently supports $ currency to 2 decimal places with Banker's Rounding. We hope to allow different currencies in the future.