The calculator estimates how your monthly mortgage repayments could change when your current deal ends. It compares your current payment to a potential new payment on your lender's Standard Variable Rate.

To use the remortgage calculator, you'll need your: 

• repayment type (capital and interest or interest only)
• outstanding mortgage balance
• remaining mortgage term
• and your current interest rate.

All calculator results are for illustrative purposes only and are based on the details you provide. Your results will serve as a guide for you, rather than offering the exact figures.

When you consider remortgaging will depend on your situation, however, it’s a good idea to explore remortgage options when your current mortgage deal is coming to an end. 

This is because you'll typically move onto your lender's Standard Variable Rate when your deal finishes, which could make monthly payments more expensive.

What other reasons might I remortgage?

Homeowners may choose to remortgage for a few reasons, including releasing equity on their home or reducing the number of years remaining on their deal.

Yes, it's possible to remortgage at any time. However, if you’d like to avoid paying early repayment charges, it's best to wait until your current deal ends. 

Read more in our guide to remortgaging

NatWest offers a variety of tools, including a mortgage rate finder which allows you to compare remortgage rates and the monthly payments. We also provide mortgage guides to help you explore your options.

Check out our mortgage calculators