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Monthly Payment · Total Fees · Check APR · Compare by MonthCard Installment Calculator

Enter the purchase amount, number of installment months, and fee rate to instantly calculate the monthly payment, total fees, and effective annual rate of interest (APR).

💳 Monthly payment💸 Total Fee📊 APR Calculation🆓 Interest-free comparison
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💳 Enter Installment Information
Purchase amount1 million won
원
10,00025 million50 million75 million100 million
Installment months6 months
months
2 months15 months30 months45 months60 months
Installment fee rate (annual)15.0%
%
0%7%15%22%30%
💡 The installment fee rates by card company Annual 12~25% This is the level. If you check interest-free installments, the payment will be processed without fees.
📊 Calculation result
💳

After entering the purchase amount and number of months
Calculate Please press the button.

Monthly payment amount
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—
Total payment amount—
Total fees—
Purchase amount—
Real Annual Rate (APR)—
Fee share—
⚠️ The APR is 20% or higher. The burden of fees increases significantly with long-term installments. Please consider paying in a lump sum or using interest-free installments first.
Comparison of monthly payments
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What is a credit card installment calculator?

Card installments are a method of paying for a purchase over several months. Interest-free installments are advantageous as they allow for spread payments without fees, but interest-bearing installments have a high Annual Percentage Rate (APR), so the total burden increases significantly over the longer the installment period.

What is APR (Real Annual Rate)?

APR is a figure that converts installment fees into an annual interest rate. Since credit card installment rates are sometimes displayed on a monthly basis, they must be converted to an annual rate for comparison. By comparing it to loan interest rates, you can determine whether installment payments are more expensive.

💡 Installment vs. Lump sum: If you have sufficient cash, paying in a lump sum is advantageous. However, if you do not have cash or if the return on investment is higher than the installment fee rate, installments may be a reasonable choice.

How to use interest-free installments

  • Most cards usually offer 2 to 3 months of interest-free installments.
  • 5 to 12-month interest-free installments are available only at specific merchants and promotions.
  • The shorter the interest-free installment period, the greater the monthly payment burden, but the total cost remains the same.

Frequently Asked Questions

Where can I check the credit card installment fee rates?
You can check the exact fee rate by consulting the credit card company's website, the terms and conditions, or the customer service center on the back of the card. Generally, interest-bearing installment fees range from 12 to 251 per annum, but vary depending on the card company, product, and personal credit rating.
Which is more advantageous, interest-free installments or interest-bearing installments?
Interest-free installments are advantageous for cash flow management as they allow you to spread your payments without fees. Interest-bearing installments have high APRs ranging from 15 to 251 TP3T, making the interest burden heavier for longer-term plans. If possible, check for interest-free options first.
Which is more advantageous, installments or a loan?
Short-term (2–3 months) interest-free installments are more advantageous than loans. For interest-bearing long-term installments (12 months or more), compare them with loan interest rates. If the APR for card installments is higher than the credit loan rate, it may be more cost-effective to make a lump-sum payment and utilize a loan.
What are the fees if I cancel (terminate) an installment plan midway?
If you cancel an installment plan midway, the remaining principal will be paid in a lump sum, and in most cases, fees already paid are not refunded. Please check the credit card company's terms and conditions for exact terms.

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