How can switching credit cards reduce interest?

Switching to a lower-interest or 0% promotional balance transfer card can reduce the total interest you pay on your existing balance.

Does this calculator model promotional rates?

Yes. You can enter a promotional interest rate, its duration, and the revert rate to see how your total interest is affected.

This basic calculator shows savings from switching. If you want to combine this with overpayments, try our advanced version.

Yes. All Optimly calculators are completely free to use with no signup required.

Credit card details

CARD BALANCE:

APR, %:

MIN REPAYMENT, %:

MIN REPAYMENT, £:

MINIMUM REPAYMENT TYPE:

Switch details

BALANCE TRANSFER, APR %:

BALANCE TRANSFER FEE, %:

BALANCE TRANSFER PERIOD, MONTHS:

START DATE:

END DATE: