Investment tools / compound interest
Compound Interest Calculator
Build a simple growth scenario. Change one assumption at a time, then read the result with its units and limits.
Step 2 / projection
Estimated future value
$691,150
After 30 years · nominal dollars · rounded to nearest dollar
Total contributions$190,000
Interest earned$501,150
Projected Growth Over Time
Contribution and estimated balance by year.
Read assumptions and disclaimer
Calculated with monthly compounding and contributions at the end of each month. The annual return is a scenario input; actual returns vary and may be negative.
This educational estimate is not financial advice. It excludes taxes, fees, inflation, and market volatility.