Credit Card Interest Calculator

How Credit Card Interest Works in India

Indian credit cards use the Average Daily Balance (ADB) method to calculate interest. Here's the key concept:

• If you pay your full statement balance by the due date, you pay zero interest.
• If you pay anything less — even ₹1 short — interest is charged on the entire outstanding balance from the date of each transaction, not just the unpaid portion.
• You also lose the grace period on new purchases in the next billing cycle.

Most Indian credit cards charge between 2.5% and 3.5% per month, which equals 30% to 42% per annum — making credit card debt the most expensive form of consumer borrowing in India.

How to Use This Calculator

1. Enter your outstanding balance — the total amount due on your credit card.
2. Enter the APR — check your statement or card terms. Default is 39.48% (≈3.29%/month).
3. Enter minimum due percentage — typically 5% in India.
4. Enter a fixed payment amount — what you can actually afford each month.
5. Click "Calculate" to compare scenarios side by side.

Example: ₹50,000 Credit Card Balance

At 39.48% APR with 5% minimum due payments:

• Minimum-only: Takes 8+ years, costs ~₹85,000 in interest. You pay ₹1,35,000 total for a ₹50,000 balance.
• Fixed ₹5,000/month: Cleared in ~13 months, ~₹12,500 interest. Saves ₹72,000+.
• Aggressive ₹10,000/month: Cleared in ~6 months, ~₹6,000 interest.

Why This Matters

• Credit cards are the most expensive debt in India — at 36-42% APR, they cost 3-4× more than personal loans
• The minimum due trap is real — banks design it to keep you paying interest for years
• Converting to EMI at 12-15% is almost always better than revolving credit at 36-42%
• Knowing the true cost changes behaviour — most people underestimate how much they're paying

Related Tools & Guides

• EMI Calculator — Convert card balance to a fixed EMI plan
• Debt Payoff Planner — Plan to eliminate credit card + loan debt
• The Minimum Due Problem Explained
• How Credit Card Interest Works in India
• Late EMI Penalty Calculator
• 📘 Complete Guide: Credit Card Debt in India