[Interest Calculator]
- Savings Interest Calculation: Calculate the return on regular savings deposits with a fixed monthly deposit.
- Deposit Interest Calculation: Calculate the return on deposits with a lump sum investment.
- Deposit and Savings Required Period Calculation: Calculate the period required to achieve your target return.
- Savings Target Return Required Deposit Calculation: Calculate how much you need to deposit to achieve your target return within a certain period.
- Deposit and Savings Comparison: Compare multiple deposit/savings products simultaneously.
- Deposit vs. Savings Comparison: Compare which product is more advantageous between a deposit and a savings account.
- Deposit Switching: Analyze the profit and loss when switching to a different deposit before maturity.

[Account Management]
- Calculate registered account balances, accumulated interest, expected return upon product maturity, and D-day calculation.