Plan your financial future with our free compound interest calculator. Understand how initial deposits, monthly contributions, and interest rates synergize to build wealth over 5, 10, or 30 years.
Privacy Protected
Compound Interest Calculator
Calculate how your money grows over time with compound interest and regular contributions.
Investment Settings
Formula
Compound Interest Formula
A = P(1 + r/n)^(nt)Annuity Formula (Contributions)
A = PMT × ((1 + r)^n - 1) / rFuture Growth
Estimated Total Value
$106,639
Total Principal
$70,000
Total Interest
$36,639
Interest Contribution
34.4% of total* Note: This calculation assumes interest is compounded at the end of each period. Actual returns may vary based on the specific "Compounding Frequency" selected.
The Power of Compounding
Albert Einstein reportedly called compound interest the "eighth wonder of the world". It's the process where the interest you earn on your investment also earns interest. cipal, which also includes all of the accumulated interest from previous periods.
Consistency
Regular contributions significantly boost the compounding effect.
Time
The longer you leave your money, the faster it grows.
Rate
Even small increases in your interest rate make a huge difference.
Compound Interest Calculator
Calculate how your money grows over time with compound interest. Accurate savings and investment forecasting tool.
1
Principal
Enter your starting balance.
2
Rate
Input the expected annual interest rate.
3
Time
Select the investment duration in years.
Key Features
Monthly Deposits
Include recurring contributions.
Custom Frequency
Compound daily, monthly, or annually.
Visual Growth
Clear charts of your balance over time.
Frequently Asked Questions
Compound interest is interest calculated on the initial principal, which also includes all of the accumulated interest from previous periods.
Related Tools
View allEmergency Fund
Calculate how much you need to save for life’s surprises.
Savings Goal
Calculate monthly savings needed to reach your target.
ROI Calculator
Calculate Return on Investment and annualized ROI for projects.
Break-Even Calculator
Find how many units you need to sell to cover all costs.
Future Value
Calculate how much your investments will grow over time.
Present Value
Calculate the current value of a future sum of money.
Last updated on