Educational use only: This platform provides information for educational purposes and should not be considered financial, investment, or legal advice.

Compound Interest Calculator

Calculate how your investments grow with the power of compound interest. See the magic of compounding in action.

Investment Details

£
£

Investment Growth

£144,572.72
Final amount in 20 years
£86,572.72
Interest earned
£58,000
Total contributed
Initial investment growth:£40,387.388
Contributions growth:£104,185.332
Total return:149.3%

Key Insights

Rule of 72
10.3 years to double
Compounding
Monthly
Annual Return
7%
Monthly Impact
Contributing £200 monthly adds £48,000 over 20 years

Compound Interest Formula

Future Value = P(1 + r/n)^(nt) + PMT × [((1 + r/n)^(nt) - 1) / (r/n)]

Where: P = Principal, r = Rate, n = Compounding frequency, t = Time, PMT = Monthly contribution

Understanding the Results

This calculator shows the power of compound interest and regular contributions. The "interest earned" represents the magic of compounding - money making money. Remember, past investment returns don't guarantee future performance. Use this as a planning tool, not a guarantee.

Learn More About Investing

Understand compound interest and start your investing journey.

Compound Interest GuideInvesting Guide