Compound Interest Calculator
Calculate compound interest, future value of investments, and savings growth
Investment Details
Quick Scenarios
Investment Growth Results
Investment Summary
Investment Composition
Year-by-Year Growth
| Year | Starting Balance | Contributions | Interest | Ending Balance |
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Enter investment details to calculate
Fill in your initial investment, contributions, and return rate above
Compound Interest Calculator FAQ
What is the difference between annual and monthly compounding?
Monthly compounding applies interest twelve times a year, so interest starts earning interest sooner. Over long periods, more frequent compounding produces noticeably higher returns than annual compounding at the same nominal rate.
How do I include regular monthly contributions?
Enter the contribution amount and choose monthly frequency. The calculator adds each deposit at the start or end of the period you select and compounds it together with your principal.
Does the calculator account for taxes and inflation?
No. Results show gross compound growth. For real-world planning, compare the final amount against expected inflation, and check whether your interest is taxable in your jurisdiction.