Capital One Bank is similar to other banks where you get different kind of features only if you are a customer. Capital One Bank has the online banking and mobile banking features. Capital One Bank has its own site for UK and can be access from UK.

For Capital One Bank  UK Login Online Banking (website), you can follow these steps:

1. First you need to open your browser. There you can open any search engine like Google which is the most popular search. In search engine, you need search for Capital One online banking where you will get numerous results with the link which can make you confuse.
2. But you need to open the genuine one.So as you open the Capital One bank login page, you will see some blank spaces where you need to enter some details to login. So, first you need to enter your Username.
   
3. Then you need to see down and fill the blank with the correct no of characters that your password has.As you enter your password, you need to click on the “Sign In” button.

After that you will be logged in. The same way, you can sign in to mobile device by mobile app. The app is available in the respective store of your device. So, follow these steps to login in mobile app:

1. You need to open the Capital One UK app in your device. And as you open, you will be asked to login with your credit card details. So, you need to tap on the start button and then you will get the blank.
2. In the blank, you need to enter your card number and then you need to enter the expiry date of your card also. To enter the details, you can also scan the card with the scan option.
3. After the details are entered, you can login by tapping the continue button. And as you get logged in, it will be easy to access from anywhere anytime as the mobile is with you.

So, you can access any type of login from the mobile or site.