Balance Transfer Calculator
Check whether moving a credit card balance to a 0% promo card saves money after the transfer fee.
When a balance transfer helps
A 0% promotional period stops interest, so every payment cuts the balance. You pay a one-off fee, usually a few percent. It helps if you can clear most of the balance before the promo ends and you do not add new spending.
Watch out
After the promo, the rate may jump. Late payments can cancel the offer. Keep paying more than the minimum.
Worked example
Last reviewed November 2026. Formulas are standard and shown in the sections above; results are estimates.
Tips and common mistakes
- Divide the balance by the promo months to see the payment needed.
- Do not add new purchases to the card.
- Set up an automatic payment to avoid missing one.
Learn more
Frequently asked questions
Is a transfer fee worth it?
If interest saved is more than the fee, yes. The calculator shows the net.
What happens after the promo?
The rate you enter in the last field applies.
Does it hurt credit?
Applying creates a credit check. Check the lender's terms.
Money guides for this topic
All guides →Credit Card Interest Explained (and How to Beat It)
How APR turns into monthly interest, why minimum payments keep you in debt, and when a balance transfer helps.
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Open calculator →Results are estimates and not financial advice.