Free Financial Calculator
Compound Interest Calculator
Project long-term growth with flexible compounding and recurring contributions.
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Complete the fields and select Calculate to view the estimate.
How This Calculator Works
The calculator simulates contributions and growth across monthly periods, converts the selected nominal rate to an equivalent monthly rate, and tracks principal, contributions, estimated earnings, and an optional inflation-adjusted value.
Frequently Asked Questions
Why can contribution timing change the result?
Beginning-of-period deposits generally earn interest for one additional period.
Is the interest rate guaranteed?
No. Use a rate that fits the account or scenario you are evaluating.
What does inflation-adjusted value mean?
It estimates the future balance in terms of current purchasing power.