Compound Interest Calculator
Calculate compound interest growth over time
Investment Details
Starting amount to invest
Amount added each month
Expected annual return
Investment Growth
Enter investment details and click Calculate
Fill in the form to see your investment growth projection
The Power of Compound Interest
Compound interest is often called the "eighth wonder of the world" because of its ability to grow wealth exponentially over time. Unlike simple interest, compound interest earns interest on both your principal and previously earned interest.
The Formula
For compound interest with regular contributions:
Where: A = Final amount, P = Principal, r = Annual rate, n = Compounds per year, t = Years, PMT = Regular payment
Key Insights
- Start early: Time is the most powerful factor in compound growth
- Be consistent: Regular contributions amplify compounding
- Reinvest returns: Let your interest earn interest
- More frequent compounding: Slightly increases returns
Disclaimer: This calculator is for informational purposes only and should not be considered financial, tax, or legal advice. Results are estimates based on the information provided and current tax laws. Consult a qualified professional for advice specific to your situation.
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