The formula, made clear.
Uses monthly compounding and assumes deposits are made at the end of each month.
Investment returns are not guaranteed. This estimate excludes fees, taxes, inflation and market changes and is not financial advice.
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MONEY TOOL
Compound Interest Calculator
Project how a starting balance and regular monthly deposits may grow over time.
Estimated future balance31,634.86Contributions 28,000 · Growth 3,634.86
Contributions: 28,000Growth: 3,635
When to use this calculator
Explore how time, regular deposits and an assumed annual return can affect long-term savings. This is useful for planning scenarios, not predicting investment performance.
See the calculation in context
A 10,000 starting balance, 500 monthly deposit and 6% annual return over 3 years produces an estimated future value of about 31,261, assuming monthly compounding and end-of-month deposits.
Frequently asked questions
Are deposits made at the start or end of each month?
The estimate assumes deposits are made at the end of each month.
Does the result include inflation or fees?
No. Taxes, fees, inflation and market volatility are excluded.