1. What is Daily Interest?

Daily interest is the amount of interest earned or paid on a daily basis, calculated from an annual interest rate. It's commonly used in banking, loans, and investments to determine daily accruals.

2. How Does the Calculator Work?

The calculator uses the daily interest formula:

Where:

• \( \text{Balance} \) — Current account balance or principal amount
• \( \text{Annual Rate} \) — Annual interest rate in percentage
• \( 365 \) — Number of days in a year (some calculations use 360)

Explanation: The formula converts the annual rate to a daily rate by dividing by 365 days, then applies it to the current balance.

3. Importance of Daily Interest Calculation

Details: Calculating daily interest helps understand how much interest accrues each day, which is important for comparing financial products, understanding compounding effects, and managing loans or investments.

4. Using the Calculator

Tips: Enter the current balance in dollars and the annual interest rate as a percentage (e.g., enter 5 for 5%). The calculator will compute the daily interest amount.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 365 instead of 360?
A: Most modern financial institutions use 365 days for daily interest calculations, though some may use 360 days (known as the "banker's year").

Q2: Does this account for compounding?
A: This calculates simple daily interest. For compound interest, the calculation would be more complex as it would include previously earned interest.

Q3: How accurate is this calculation?
A: It provides a good estimate for most purposes, but actual bank calculations may use slightly different methods or rounding rules.

Q4: Can I use this for loans and credit cards?
A: Yes, this works for any product with an annual interest rate, though credit cards may have additional fees or calculation methods.

Q5: What if interest is compounded daily?
A: For daily compounding, you would need a different formula that accounts for the compounding effect over time.