📈 Investment & Compound Interest Calculator
Analyze investment returns, discover compound growth, and plan your wealth building strategy
Investment Details
Your starting amount
Amount added each month
Expected annual return
How long to invest
How often interest compounds
Results Summary
FV = P(1 + r/n)^(nt) + PMT × [(1 + r/n)^(nt) - 1] / (r/n)
P = Principal, r = Rate, n = Frequency, t = Time, PMT = Payment
Quick Insights
Your money will grow 0.00% annually on average
0x your investment
0% from interest
$0 interest per year
Yearly Breakdown
| Year | Principal Growth | Total Contributions | Interest Earned | Total Value |
|---|
💡 Understanding Investment & Compound Interest
What is Compound Interest?
Compound interest is interest earned on both your original investment and the accumulated interest from previous periods. This creates a snowball effect that accelerates your wealth growth over time.
Key Formula: A = P(1 + r/n)^(nt)
Where A is the final amount, P is principal, r is rate, n is frequency, and t is time.
Why Start Early?
The earlier you start investing, the more time compound interest has to work in your favor. Even small amounts invested early can grow into substantial wealth over decades.
Example: $100/month at 7% for 40 years = $240,000
The same amount for 20 years = only $52,000