Fixed rate mortgage calculator

Tailored rates with firstmortgage.co.uk

First Mortgage’s fixed rate mortgage calculator can give you a good idea of how much your monthly repayment will be, and how much you can afford to borrow.

Simple and easy to use, just enter how much you want to borrow and the loan duration and click the calculate button. Our fixed rate mortgage calculator tries to give you a rough idea of your repayments, but for a full quote contact us on 0845 603 1525 to talk with a member of our team.

Use our fixed rate mortgage calculator

What is a fixed mortgage?

With a fixed rate your lender agrees to set your interest at an agreed level for a period of 1-5 years. After this period your mortgage will revert to the lender’s SVR (standard variable rate). Although interest may initially be higher with this type of deal than with a standard mortgage, if the base rate rises your payments will remain the same.

Using the fixed rate mortgage calculator

Our fixed rate mortgage calculator is designed to give you a good idea of how much you can afford to borrow. This type of deal is not the right choice for everyone. It’s worth considering the following pros and cons:

- If interest rates rise, your payments stay the same

- However - if interest falls, you won’t see the benefit

- A very popular deal with first time buyers, offering stability and easy control of your finances. For the same reason this makes it a good choice for young families and people with irregular incomes

- If you expect there to be changes in your financial circumstances in the near future, a fixed rate is usually the best option

- When your fixed term ends, your payments may rise as you switch to the normal variable rate.

Use our fixed rate mortgage calculator

For more information and advice call us on 0845 603 1525 for a free consultation and an instant decision.

You may also want to view other types of deal available, including discounted, tracker, flexible, capped, offset, current account and cashback mortgages.



  • Our whole of market service provides an unbeatable choice of mortgage lender.
  • We have negotiated many ‘Exclusive’ market leading deals for our clients only.
  • Your own dedicated mortgage advisor manages your application from start to finish.
  • We do all the paperwork and work with lenders to ensure everything goes smoothly.
  • Our mortgage advisors are expert in every type of money saving remortgage.
  • Branches throughout Scotland
  • Specialist help for first time buyers and homemovers with Property Law Centre
  • Scotland’s longest established mortgage advisors
Why use First Mortgage?

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