Compound Interest
See how your money can grow over time with compound interest by inputting your initial investment, regular contributions, and expected return rate.
Future Value
$106,639.02
Total Contributions
$70,000.00
Total Interest Earned
+$36,639.02
How Compound Interest Exponentially Grows Investment Wealth
Compound interest earns interest on both the initial principal and the accumulated interest from prior periods.
1Compound Interest Formula with Monthly Deposits
Total Future Value A = P(1 + r/n)^(nt) + PMT × [ ((1 + r/n)^(nt) - 1) ÷ (r/n) ]
P = Initial Principal
PMT = Regular Monthly Contribution
r = Annual Interest Rate
n = Compounding Frequency per year
t = Time Horizon in Years
Frequently Asked Questions
More frequent compounding periods (e.g. daily vs annual) allow interest to generate additional yields faster over time.