An online tool to calculate compound interest on an investment or savings account, showing how your money can grow over time.
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Embed this compound interest calculator on your website for free. It's responsive, always up-to-date, and easy to customize.
Project the future value of your investment with compounding and regular contributions
| Year | Total Invested | Interest Earned | Future Value |
|---|---|---|---|
| 1 | $10,000.00 | $511.62 | $10,511.62 |
| 2 | $10,000.00 | $1,049.41 | $11,049.41 |
| 3 | $10,000.00 | $1,614.72 | $11,614.72 |
| 4 | $10,000.00 | $2,208.95 | $12,208.95 |
| 5 | $10,000.00 | $2,833.59 | $12,833.59 |
| 6 | $10,000.00 | $3,490.18 | $13,490.18 |
| 7 | $10,000.00 | $4,180.36 | $14,180.36 |
| 8 | $10,000.00 | $4,905.85 | $14,905.85 |
| 9 | $10,000.00 | $5,668.47 | $15,668.47 |
| 10 | $10,000.00 | $6,470.09 | $16,470.09 |
| 11 | $10,000.00 | $7,312.74 | $17,312.74 |
| 12 | $10,000.00 | $8,198.49 | $18,198.49 |
| 13 | $10,000.00 | $9,129.56 | $19,129.56 |
| 14 | $10,000.00 | $10,108.26 | $20,108.26 |
| 15 | $10,000.00 | $11,137.04 | $21,137.04 |
| 16 | $10,000.00 | $12,218.45 | $22,218.45 |
| 17 | $10,000.00 | $13,355.19 | $23,355.19 |
| 18 | $10,000.00 | $14,550.08 | $24,550.08 |
| 19 | $10,000.00 | $15,806.11 | $25,806.11 |
| 20 | $10,000.00 | $17,126.40 | $27,126.40 |
Welcome to our Compound Interest Calculator! This tool is designed to help you visualize and plan for the remarkable growth your money can achieve when interest earns interest. Often called the "eighth wonder of the world," compound interest is a fundamental concept in finance that can significantly impact your savings, investments, and even your debt.
At its core, compound interest is the interest you earn not only on your initial principal amount but also on the accumulated interest from previous periods. It's distinct from simple interest, which is only calculated on the original principal.
Think of it like a snowball rolling down a hill:
This "interest on interest" effect is what makes compounding so powerful, especially over longer periods.
Our calculator uses the standard compound interest formula to determine the future value of your investment or savings. While the calculator does all the heavy lifting, understanding the components helps grasp its power:
By simply inputting these values, our compound interest calculator instantly shows you the potential growth of your money.
Use this compound interest tool as a starting point for your financial planning. For personalized advice, always consult with a qualified financial advisor who can consider your unique situation.
Input the initial amount you want to invest or save.
Enter the annual interest rate as a percentage.
Select how long you plan to keep the money invested.
Choose how often interest is compounded (daily, monthly, quarterly, annually).
See your future value, total interest earned, and growth over time.
The total amount you'll have after the specified time period, including your original investment plus all compound interest earned.
The total amount of money earned through compound interest. This is your profit above the initial investment.
The actual annual return when compounding is considered. Higher compounding frequency increases this rate above the nominal rate.
Visual representation showing how your investment grows over time. Notice how growth accelerates due to compounding effects.
Project future value with principal, rate, time, compounding, and optional contributions. Toggle breakdowns, charts, and CSV export.
Project how savings or investments can grow with compounding and optional regular contributions. Supports common compounding and contribution frequencies with a clear growth chart and year-by-year table.
See future value, total invested, and interest earned.
Interactive chart and table for each year of the horizon.
Compounding and contributions from annually to daily.
Compound interest calculator, future value, regular contributions, compounding frequency, growth chart, interest earned, financial planning
Pair with loan and ROI tools for full planning.
Important: This compound interest calculator is designed for educational and preliminary financial planning purposes using standard compound interest formulas and mathematical projections. While calculations are mathematically accurate for the specified parameters, actual investment returns involve market volatility, economic cycles, inflation effects, fees, taxes, and changing interest rates that cannot be predicted or guaranteed. The calculator assumes constant rates and regular contributions, which rarely occur in real-world investing scenarios. Past performance does not guarantee future results, and all investments carry risk of loss. For actual investment planning, retirement planning, savings strategies, or financial goal setting, consider comprehensive financial modeling, diversification strategies, and consult qualified financial advisors, certified financial planners, or investment professionals who can provide personalized guidance based on your specific financial situation, risk tolerance, and long-term objectives.