Compound Interest Calculator
Calculate compound interest with various compounding frequencies and optional monthly contributions
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Harness the Power of Compound Interest
Albert Einstein allegedly called compound interest the 'eighth wonder of the world.' Our calculator shows you exactly how your money can grow over time with different compounding frequencies and regular contributions.
What Is Compound Interest?
Compound interest is interest calculated on both the initial principal and the accumulated interest from previous periods. Unlike simple interest, compound interest grows exponentially over time, making it a powerful tool for long-term savings and investments.
Compound Interest Formula
A = P(1 + r/n)^(nt)Why Use This Calculator?
Accurate Projection
See exactly how much you'll have at the end of the period.
Monthly Contributions
Include regular deposits in your calculations.
Multiple Frequencies
Calculate with monthly, quarterly, or annual compounding.
How to Calculate Compound Interest
Compound Interest Applications
Retirement Savings
Project the growth of your pension fund.
Savings Accounts
Calculate returns from bank accounts.
Investments
Estimate returns from funds and stocks.
Financial Education
Understand the impact of time on investments.
Frequently Asked Questions
More frequent compounding (daily vs. annually) results in slightly higher returns because interest is calculated and added to your principal more often, creating a larger base for future interest.