Interest Calculator

Compound Interest Calculator

Determine the future value of your investments with fixed principal, periodic contributions, and optional adjustments for tax and inflation.

Investment Details

Initial Investment ($)

Monthly Contribution ($)

Contribute at the…

Beginning End

Interest Rate (%)

Compound

Investment Length

Tax Rate (%)

Inflation Rate (%)

Ending Balance

Total Principal

Total Contributions

Total Interest

Buying Power (after inflation)

Year	Deposits	Interest Earned	Ending Balance

Enter your investment details and click “Calculate” to see your financial future.