1%p lower3.5%
Estimated monthly payment
₩449,045Money calculator
Loan Payment Calculator
Enter the loan amount, annual rate, term and repayment method to estimate payments and total interest.
STEP 1
Enter your values
RESULT
₩506,685Estimated monthly payment
Estimated payment based on the selected repayment method.
Total repayment₩182,406,712
Estimated total interest₩82,406,712
Average monthly payment₩506,685
Stamp duty, guarantee fees, early-repayment charges and lender-specific daily interest calculations are excluded.
WHAT IF
What changes when Annual interest rate changes?
Compare the main result without re-entering every field.
Current input4.5%
Estimated monthly payment
₩506,6851%p higher5.5%
Estimated monthly payment
₩567,789Input guide
What each value means
Loan amount
Use the amount or value shown on the relevant contract, statement or record.
Annual interest rate
Use the amount or value shown on the relevant contract, statement or record.
Loan term
Use the amount or value shown on the relevant contract, statement or record.
Repayment method
Choose the option that matches the conditions you want to calculate.
How it works
Loan Payment Calculator formula
Equal payment: P × r × (1+r)ⁿ ÷ ((1+r)ⁿ−1)
The monthly rate is the annual rate divided by 12, and n is the total number of months.
Example
Example calculation
Enter KRW 100 million at 4.5% for 30 years to compare monthly payments and total interest.
- Standard
- Monthly conversion of annual rate; fees excluded
- Last reviewed
- September 27, 2026
Standards and sources
Calculated from official or reliable reference material.
Questions
Loan Payment Calculator FAQ
What should I enter in the Loan Payment Calculator?
Enter the requested values and the result will update immediately. Review the formula, assumptions and exclusions below the result.
Is the result an official amount?
No. It is an estimate based on the entered conditions and stated assumptions. Confirm important tax, insurance, employment or financial decisions with the relevant institution or a qualified professional.
Are Korean rules used?
This calculator uses the general formula or reference source shown on the page.
Related searchesloan paymentloan interestamortizationmonthly payment
Useful next steps