Compound Interest Formula:
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Compound interest is interest calculated on the initial principal and also on the accumulated interest of previous periods. It's often called "interest on interest" and can make a sum grow at a faster rate than simple interest, which is calculated only on the principal amount.
The calculator uses the compound interest formula:
Where:
Explanation: The formula accounts for how often interest is compounded, which can significantly affect the final amount.
Details: The more frequently interest is compounded within a given time period, the more interest will be earned. Daily compounding yields more than monthly, which yields more than annually.
Tips: Enter the principal amount, annual interest rate (as a percentage), time period in years, and select how often the interest is compounded. All values must be positive numbers.
Q1: What's the difference between simple and compound interest?
A: Simple interest is calculated only on the principal amount, while compound interest is calculated on the principal plus any accumulated interest.
Q2: How does compounding frequency affect returns?
A: More frequent compounding leads to higher returns. For example, daily compounding will yield more than annual compounding at the same rate.
Q3: What's a realistic interest rate for high-yield investments?
A: While rates vary, typical high-yield savings accounts offer 3-5% APY. Higher rates may indicate higher risk.
Q4: Can I use this for retirement planning?
A: Yes, this calculator can help estimate growth of retirement savings, though actual returns may vary with market conditions.
Q5: Are there risks with high-yield investments?
A: Generally, higher yields come with higher risks. It's important to understand the investment vehicle and its risk profile.