Credit Card Interest Calculator Australia
Estimate your credit card interest, monthly interest cost, repayment time and total amount paid.
Your Credit Card
Optional Cash Advance
Interest Breakdown
Estimated interest based on the balances and rates entered.
Credit Card Payoff Estimate
See how long your balance could take to repay at your selected monthly payment.
What If You Pay More?
Compare different monthly repayments.
| Monthly Payment | Payoff Time | Total Interest | Interest Saved |
|---|---|---|---|
| $0 | — | $0 | $0 |
| $0 | — | $0 | $0 |
| $0 | — | $0 | $0 |
| $0 | — | $0 | $0 |
Monthly Interest & Repayment Schedule
Estimated balance, interest and principal over time.
| Month | Payment | Interest | Principal | Remaining Balance |
|---|
How to Use the Credit Card Interest Calculator Australia
Enter your current credit card balance and annual purchase interest rate to estimate the interest cost of carrying your balance. You can also enter a cash advance balance, cash advance interest rate, annual card fee and monthly repayment to create a more complete estimate of your credit card costs.
How Much Interest Does a Credit Card Charge?
Credit card interest depends on your outstanding balance, interest rate, transaction type and the terms of your card. Purchase transactions and cash advances may have different interest rates. Cash advances generally do not receive the same interest-free treatment as eligible purchases.
Can Paying More Reduce Credit Card Interest?
Paying more toward your credit card balance can reduce the outstanding principal faster. A lower balance can mean less interest is charged over time. Use the repayment comparison above to see how different monthly payment amounts may affect your estimated payoff time and interest cost.
Interest-Free Days in Australia
Some Australian credit cards offer interest-free days on eligible purchases when their conditions are met. The length and rules vary between cards. Cash advances may be treated differently. Always check your card's terms and conditions before relying on an interest-free period.
The Credit Card Interest Calculator Australia is a free online tool designed to help Australians estimate how much interest they may pay on an outstanding credit card balance. Enter your credit card balance, purchase interest rate, monthly repayment and any additional payment to estimate daily, monthly and yearly interest costs. The calculator also allows you to include a separate cash advance balance, cash advance interest rate and annual card fee for a broader estimate of your credit card costs. You can compare different repayment amounts to see how paying more each month may reduce your estimated payoff time and total interest. Australian credit cards can have different interest rates, fees and conditions, and some cards offer interest-free days when specific conditions are met. The results from this calculator are estimates for educational purposes only and may differ from the calculations used by your card provider.