# Compound Interest Calculator - Compare Future Values for Two Rates of Return

Use this compound interest calculator to compare how much money you would accumulate by investing a given amount of money at two different fixed annual rates of return for a specified period in years.

For example, if you invested $1,000 at a 4 percent annual rate of return, after 20 years you would have $2,191.12. At a 6 percent annual rate of return you would have $3,207.14.

## Computational Notes:

The future value is computed using the following compound interest formula:Future Value = Investment Amount * (1 + Annual Rate of Return / 100) ^ Number Years

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