Free compound interest calculator
Project how savings and returns could grow over time.
Estimate how an initial deposit, regular monthly contributions, and a steady annual return could affect your future balance.
Monthly compounding
Contributions are added at the end of each month after growth is applied.
Projected final balance
£129,885
Includes £59,885 of estimated growth over 20 years.
Inputs
Savings details
Estimate
Results
Projected final balance
£129,885
Total contributions
£70,000
Estimated growth
£59,885
Assumes a steady annual return compounded monthly. Actual returns may vary and investments can fall as well as rise.
Projection
Investment balance over time
Important disclaimer
This calculator provides estimates only and does not constitute financial advice, investment advice, or a guarantee of returns. Actual performance may vary due to fees, taxes, market conditions, inflation, and provider terms.