Credit card interest calculator

Work out how much interest you may pay on a credit card balance, based on your interest rate and monthly payments. You can calculate:

  • The potential cost of your borrowing
  • How long it could take to repay your balance
  • How much less interest you could pay by making higher monthly payments

Work out your interest

Try adjusting the figures to see how it affects the interest costs. This calculator provides an illustration only. Your actual borrowing costs can vary, depending on how you use and manage your credit card over time.

£
£

Results

Total interest: ##interest##

Total to repay: ##total_paid##

Time to repay: ##years## year(s) and ##months## months

This calculator is a guide only, calculated using approximate minimum payment rates that may vary by product or lender. We assume your interest rates always stay the same, and interest and payments are processed at the same time each month.

See our range of help guides

After using our credit card interest calculator, you might be wondering how you can cut your costs. If you’re paying interest and you don’t have the option to transfer your credit card balance, try to repay as much as you can afford each month.

Understanding and minimising costs

Minimum payments

To meet the conditions of your credit agreement, you need to make at least the minimum payment each month.

More on minimum payments

Payment options

We offer several payment options, including Direct Debit, bank transfer and debit card payments.

Explore payment options

Credit interest

When you borrow money on a credit card, you may be charged interest. 

More about credit interest

Fees and charges

In addition to interest, other account fees and charges could apply to your account.

More about fees and charges

Let’s look at the details

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Credit cards

What do you need a credit card for? Our range includes balance transfer, large purchase, everyday spending and reward credit cards. A monthly fee may apply to some reward credit cards.

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