Compound Interest Calculator
Calculate how your money grows over time with the power of compound interest and regular monthly deposits.
principal * Math.pow(1 + (rate / 100 / 12), years * 12) + (monthly_deposit * ((Math.pow(1 + (rate / 100 / 12), years * 12) - 1) / (rate / 100 / 12)))How It Works: With Monthly Deposits
Where A is final balance, P is initial principal, r is decimal interest rate, n is compounding frequency per year, and t is time in years.
A = P (1 + (r) ÷ (n))^{nt} Step-by-Step Calculation Guide
- 1Enter the Initial Principal deposit.
- 2Enter the Annual Interest Rate (%) and compounding frequency.
- 3Select the Investment Duration (Years) to see total interest earned vs principal.
Frequently Asked Questions
Common questions, expert insights, and tips about Compound Interest Calculator
The more frequently interest compounds (e.g. daily vs annually), the higher the effective annual yield (APY) because interest earns interest sooner.
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