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Compound Interest

Our Compound Interest Calculator helps you visualize how your investments can grow over time with compound or fixed interest. Whether you’re planning for retirement, saving for a goal, or comparing investment options, this tool shows you the power of compounding, where you earn interest on both your initial investment and accumulated interest. See year-by-year growth projections in both chart and table formats.

How to Use This Calculator

1
Enter Your Investment Amount
Input your initial investment amount ($1-$1,000,000). This is your starting principal.
2
Set Interest Rate
Specify your expected annual interest rate (0.01%-99.99%). This can represent savings accounts, investments, or other growth rates.
3
Choose Time Period
Select the number of years (1-20) you plan to let your investment grow.
4
Select Interest Type
Choose between Compound Interest (interest earns interest) or Fixed Interest (simple interest on principal only).
5
Calculate Growth
Click the Calculate button to see your investment growth projection.
6
Review Summary
Check the Summary section for your initial investment, total interest earned, and final amount.
7
Analyze the Growth Chart
The bar chart visually compares your principal (blue) and interest (green) growth each year.
8
View Detailed Table
Switch to the Table View to see exact yearly amounts for principal, interest, and balance.
9
Adjust Parameters
Modify any values and recalculate to compare different investment scenarios.
10
Plan Your Investments
Use the results to make informed decisions about saving strategies and financial goals.

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