Compound Interest Formula:
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This calculator helps you determine how much your savings will grow over a 10-year period using compound interest. It's useful for financial planning and setting long-term savings goals.
The calculator uses the compound interest formula:
Where:
Explanation: The formula calculates how much your initial investment will grow when interest is compounded annually over the specified time period.
Details: Planning your savings with compound interest helps you understand how small, regular investments can grow significantly over time due to the power of compounding.
Tips: Enter your initial principal amount, annual interest rate (as a percentage), and time period (default is 10 years). All values must be positive numbers.
Q1: How often is interest compounded in this calculation?
A: This calculator assumes annual compounding. For more frequent compounding, the formula would need adjustment.
Q2: What's the difference between simple and compound interest?
A: Simple interest is calculated only on the principal, while compound interest is calculated on the principal plus accumulated interest.
Q3: How accurate are these projections?
A: Projections assume a constant interest rate and no additional deposits or withdrawals. Actual results may vary.
Q4: Can I use this for investments other than savings accounts?
A: Yes, the formula works for any investment with compound growth, though actual stock market returns are more variable.
Q5: How can I account for regular contributions?
A: This calculator only handles a single initial investment. For regular contributions, you'd need a future value of annuity formula.