Compound Interest Calculator

This compound interest calculator has more features than most. You can vary both the deposit intervals and the compounding intervals from daily to annually (and everything in between).

This flexibility allows you to calculate and compare the expected interest earnings on various investment scenarios so that you know if an 8% return, compounded daily is better than a 9% return, compounded annually.

It's simple to use. Just enter your beginning balance, the regular deposit amount at any specified interval, the interest rate, compounding interval, and the number of years you expect to allow your investment to grow.

Please treat the results from these calculations as estimates only. Varying deposit and compounding intervals results in very complex equations. Actual investment results may vary.

Additionally, if you would like to factor in inflation and taxes to determine real compound return try this future value calculator here.

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