How to use it
- Enter Balance to transfer.
- Enter Transfer fee %.
- Enter Current card APR %.
- Enter Months to repay.
The formula
Weigh the transfer fee against interest saved in the 0% window.
Worked example
A 3% fee can still beat months of 22% interest if you clear it in time.
Frequently asked questions
What's the catch?
The promo rate ends; unpaid balances jump to a high APR.
Is the fee worth it?
Often yes if you repay within the promo period.
Tips
- Pay more than the minimum — it changes payoff dramatically.
- Attack the highest-rate balance first to save the most.
- Stop adding new charges while you pay debt down.
Key terms
- Minimum payment
- The smallest amount due each period.
- Utilization
- Balances divided by credit limits.
- Consolidation
- Combining debts into one loan.