Compound & Simple Interest, Future Value

Compound & Simple Interest, Future Value

Local Processing

Calculate future compound value A = P × (1 + r/n)^(n × t) from principal, rate, years, and compounding frequency.

How It Works & Processing Standards

Enter values above to calculate results automatically. Check each input field for guidance and units.

Example: Principal Deposit = 1000, annualRate = 0.12, Compounding Frequency per Year = 12, Duration (Years) = 1 → 1126.82503

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Four ways money grows with interest. Choose compound, simple, future value or present value under "Calculation".

Taxes and early-withdrawal rates are not included. Check your bank for the amount you will actually receive.

What You Can Do

Compound
principal × (1 + rate ÷ n)^(n × years). Monthly compounding is n = 12.
Simple
Interest = principal × rate × years, plus the total with principal.
Future value
What an amount grows to after n periods at a rate per period.
Present value
What a future amount is worth today.

How to Use Compound & Simple Interest, Future Value

  1. 1
    Choose a calculationCompound or simple for savings interest.
  2. 2
    Enter termsThe annual rate is in percent (3.5% → 3.5). For future and present value the rate per period is a decimal (0.035).
  3. 3
    Read the resultMoney is shown rounded; copying gives the unrounded value.

Examples

10M at 3.5% for 10 years, monthly
Input: Principal 10,000,000, 3.5%, 10 years, 12 per year
Result: 14,183,448 KRW
Same terms, simple interest
Input: Principal 10,000,000, 3.5%, 10 years
Result: Interest 3,500,000 KRW, total 13,500,000 KRW

Common Use Cases

  • The maturity amount of a term deposit
  • Comparing compound and simple interest products
  • Converting a target amount into today’s value

Frequently Asked Questions (FAQ)

What about monthly deposits?

Use the Savings Plan Calculator to compute the maturity amount of regular deposits.

What do I enter for compounding per year?

Annual 1, semiannual 2, quarterly 4, monthly 12, daily 365.

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