Compound interest calculator with monthly contributions
Estimate compound growth with monthly contributions. Explore an interactive yearly breakdown of your deposits, interest, and future balance.
Monthly contributions
Interactive growth chart
Year-by-year breakdown
How to Use
- 1
Enter your starting balance and monthly contribution.
- 2
Set the annual rate and investment timeline.
- 3
Explore projected deposits and growth each year.
Frequently Asked Questions
When are contributions added?
Interest compounds monthly and contributions are added at the end of each month.
Are returns guaranteed?
No. This is a fixed-rate illustration that excludes tax, fees, inflation, and changing returns.
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