0808 189 0463


        0808 189 0463

        Updated: April 17, 2024

        Mortgage Difference Calculator

        Want to calculate and compare the difference between two different interest rates? Our mortgage calculator lets you do this and the brokers we work with can help you from here.

        Calculate My Payments

        No impact on your credit score

        If you want to compare what your mortgage repayments will look like based on two different interest rates, our mortgage difference calculator has you covered. Simply enter your mortgage details along with your current rate and the one you want to compare it with to get started.

        calculator icon

        Mortgage Difference Calculator

        Our mortgage difference calculator will show you how much your monthly repayments could change with a different interest rate to what you have currently. Enter your outstanding mortgage amount, remaining term, both current and new interest rate. Our calculator will then do the rest.

        Enter the amount of your outstanding mortgage loan here
        Enter the outstanding term of your loan
        Enter the rate you’re currently paying
        Enter the new interest rate here

        We estimate your current monthly repayments are

        At this rate, your payments could change by…

        monthly change
        monthly total

        Speak to an experienced broker to help find you the best mortgage solution for your current circumstances.

        Why use this mortgage calculator?

        Unlike standard mortgage repayments calculators, this one allows you to directly compare two interest rates side by side. The results it returns not only illustrate what your mortgage payments will look like on two different interest rates, they also highlight the difference between the two so you get a clear picture of how much you could save.

        The main benefits of this mortgage calculator are as follows…

        • You can directly compare two mortgage deals and see how much you could save each month by choosing one over the other.
        • If you’re on a variable rate mortgage, you can see how much your mortgage will go up by following a change to the Bank of England’s base rate.
        • It can help you with planning and budgeting by allowing you to compare best and worst case scenarios for your mortgage repayments.

        Get Started with a Broker

        Maximise your chance of approval with specialist advice from a mortgage expert

        Are there any limitations to it?

        Although this calculator is a great starting point for a rates comparison, keep in mind that the results it returns are not bespoke to you. There’s no guarantee you’d qualify for the interest rates you’re comparing and there may be other variables to consider.

        This is why speaking to an experienced mortgage broker is recommended as the next step after you’ve run some initial calculations. Not only can they provide you with bespoke numbers based on your needs and circumstances, they can potentially help you save money too.

        Our Broker-Matching Service Guaranteed!

        We want you to have complete confidence in our service, and get the best chance of securing your mortgage. We guarantee to get your mortgage approved where others can’t – or we’ll give you £100*

        Learn More
        Mortgage Approval Guarantee or £100 back

        Why use Online Money Advisor?

        We’ve already established that speaking to a mortgage broker should be your next step after you’ve run some initial calculations, but it’s important that you find the right mortgage advisor.

        All mortgage brokers have a specific area of expertise, so ideally, you will need to work with one who specialises in customers just like you and has a strong track record securing the best mortgage deals for them.

        This is where we come in. By using our free broker-matching service, you can rest assured that you will be paired with the perfect mortgage broker for you. Call 0808 189 0463 or make an enquiry to get started with a free, no-obligation chat today.

        Ask Us A Question

        We know everyone's circumstances are different, that's why we work with mortgage brokers who are experts in all different mortgage subjects. Ask us a question and we'll get the best expert to help.

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        Pete Mugleston

        Pete Mugleston

        Mortgage Expert, MD

        About the author

        Pete, an expert in all things mortgages, cut his teeth right in the middle of the credit crunch. With plenty of people needing help and few mortgage providers lending, Pete found great success in going the extra mile to find mortgages for people whom many others considered lost causes. The experience he gained, coupled with his love of helping people reach their goals, led him to establish Online Mortgage Advisor, with one clear vision – to help as many customers as possible get the right advice, regardless of need or background.

        Pete’s presence in the industry as the ‘go-to’ for specialist finance continues to grow, and he is regularly cited in and writes for both local and national press, as well as trade publications, with a regular column in Mortgage Introducer and being the exclusive mortgage expert for LOVEMoney. Pete also writes for OMA of course!

        FCA Disclaimer

        *Based on our research, the content contained in this article is accurate as of the most recent time of writing. Lender criteria and policies change regularly so speak to one of the advisors we work with to confirm the most accurate up to date information. The information on the site is not tailored advice to each individual reader, and as such does not constitute financial advice. All advisors working with us as well as any of our own are fully qualified to provide mortgage advice and work only for firms who are authorised and regulated by the Financial Conduct Authority. They will offer any advice specific to you and your needs.

        Some types of buy to let mortgages are not regulated by the FCA. Think carefully before securing other debts against your home. As a mortgage is secured against your home, it may be repossessed if you do not keep up with repayments on your mortgage. Equity released from your home will also be secured against it.