Credit Card Interest Calculator

Ever wondered why your credit card balance seems to grow even when you pay the minimum? Use our calculator to see exactly how interest compounds and how much you can save.

Manual Entry (Enter APR below)
50,000
5,00010,00,000
42%
12%52%
5,000
1,0001,00,000

Total Potential Savings

₹88,200

By paying ₹5,000 monthly instead of just the minimum due.

Debt-Free In

13 Mos

Min Due Path

142 Mos

Interest Comparison Breakdown

Example: Your Savings with ₹5,000 Payment

Let's analyze your scenario: an outstanding balance of ₹50,000 at 42% APR. If you pay ₹5,000 monthly vs just the minimum due, here's the massive difference:

Path 1: Minimum Due Only

Interest Paid₹1,00,832
Time to Pay Off142 Months

Issuers love this. You stay in debt for over 11 years.

Path 2: Fixed ₹5,000 Payment

Interest Paid₹12,633
Time to Pay Off13 Months

You save ₹88,200 in interest!

Why the difference is so huge?

Credit card interest is calculated on your Average Daily Balance. When you pay only the minimum, you hardly touch the principal amount. The high 42% APR keeps compounding on the nearly unchanged balance. By paying ₹5,000, you aggressively reduce the principal every month, which drastically cuts the base for next month's interest calculation.

What is this Calculator?

This tool helps you visualize the high cost of credit card debt. Unlike a standard loan, credit cards use a daily compounding method. This calculator simulates how your balance decreases (or unfortunately, increases) based on your interest rate and monthly payment habits.

How to Use It

1

Enter your current total outstanding balance.

2

Select your specific card or manually enter your APR.

3

Set the amount you plan to pay every month.

4

Instantly see how many months it will take to become debt-free.

The APR Reality

In India, most credit cards charge between 2.5% to 4.0% per month. This translates to an annual rate of 30% to 48%. When you add the 18% GST on top of this interest, the effective cost of borrowing is one of the highest in the financial world.

Expert FAQ

Frequently Asked Questions

Most Indian banks use the 'Average Daily Balance' method. They take your balance at the end of each day, sum them up, divide by the number of days in the billing cycle, and then apply the monthly periodic interest rate (APR / 12).
APR stands for Annual Percentage Rate. It represents the total yearly cost of borrowing. If your monthly interest is 3.5%, your APR is 3.5% * 12 = 42% per year. Note that with compounding, the Effective Annual Rate (EAR) might be even higher.
Interest starts the moment your 'Grace Period' ends. If you pay your total statement balance in full by the due date, you pay zero interest. However, if you carry even a small balance forward, interest usually starts accruing from the date of the original transaction.
The Minimum Amount Due is usually just 5% of your total balance. While paying it avoids late fees, the remaining 95% continues to accrue interest at extremely high rates (36-48% APR). This can keep you in debt for decades.
Yes. If you haven't paid your previous statement in full, you lose your interest-free grace period. This means any new purchase will start accruing interest from the very day you spend, until you clear the entire balance.
No, the only way to avoid interest entirely is to pay the 'Total Amount Due' by the due date. Any unpaid portion will incur interest charges.
Yes, in India, a GST of 18% is applicable on the interest amount charged by the bank. So, if your interest is ₹100, the bank will charge you ₹118 (₹100 + ₹18 GST).
The best ways are: 1) Paying more than the minimum due, 2) Converting large purchases into EMIs (which usually have lower interest rates of 13-18% APR), or 3) Transferring your balance to a lower-interest loan.
No, cash withdrawals usually attract interest from the day of withdrawal (no grace period) and often have higher interest rates than retail purchases, plus a flat transaction fee.
Because most of your minimum payment goes towards paying off the interest and GST, leaving very little to reduce the actual 'Principal' amount you borrowed.