📈 Investing & Growth

Compound Interest Calculator

Albert Einstein reportedly called compound interest the "eighth wonder of the world." Use this calculator to see exactly how your money can exponentially grow over time.

📖 How Compound Interest Works🎯 Savings Goal Calc

Investment Details

$
The amount of money you are starting with today.
$
Amount you will add every single month.
Yrs
%
Stocks/Funds effectively compound annually. Bank accounts compound daily or monthly.
Total Future Value
$0

After X years, your investment will be worth...

📥
Total Principal
$0
Initial + Contributions
✨
Total Interest Earned
$0
"Free" Money Generated

Wealth Growth Over Time

Principal Interest
💡
Insight loads here.

The Compound Interest Formula

This calculator uses standard continuous compounding formulas to evaluate both your initial deposit and your recurring monthly deposits.

Basic FormulaA = P(1 + r/n)^(nt)
VariablesA = Final Amount | P = Principal
r = Rate | n = Compounds per year | t = Years
With Monthly Contributions (PMT)A = P(1 + r/n)^(nt) + PMT × [(1 + r/n)^(nt) - 1] / (r/n)

Note: When compounds are set to Daily (n=365) but contributions are Monthly, the calculator standardizes contributions to end-of-month payments, which is standard financial modeling practice.

The Magic of Compound Interest over time
The Magic of Compound Interest over time - © mintlyhub.com