Mortgage calculators
Know Your Money’s mortgage calculators have been designed to help you find out the fundamental factors of your individual circumstances such as how much you can borrow and how much a mortgage will cost you. For a more detailed understanding of your current siutation we have teamed up with the award winning London & Country mortgages to provide you with expert advisers on hand to answer any question you may have. Simply call 0800 953 0610 to speak with an expert mortgage adviser.
London & Country Mortgages
How much can I borrow on a mortgage?
Find out the maximum amount you can borrow. This may depend on a variety of things including: the deposit you can put down or outstanding financial commitments you may have (including credit cards or loans).
How much will my mortgage cost monthly?
This calculator will let you know how much your monthly repayments will be, depending on the size of your mortgage and the current interest rates.
What will happen if interest rates rise or fall?
Interest rate rises can affect your monthly mortgage repayments considerably. Use this calculator to see how they will affect your mortgage.
How much can I borrow on a buy to let mortgage?
Find out how much you can borrow on a buy-to-let mortgage with this easy to use calculator.
How much rent should I charge?
This calculator will give you an indication of how much you rent you would need to charge on your buy to let property, in order to cover the mortgage repayments.
Can I change my mortgage lender if I have early repayment charges?
Remortgaging can often save you money, even if you have to pay an early repayment charge. This calculator will let you work out the interest rate you would need to be paying in order to make remortgaging financially worthwhile.
Effects of making overpayments
Making regular overpayments on your mortgage can save you a significant amount of money, find out how much with this calculator.
Will my endowment repay my whole mortgage?
If you’re worried about an endowment shortfall on your mortgage, this calculator will let you work it out.
Stamp duty calculator
Use this calculator to work out how much Stamp Duty Land Tax you will have to pay when buying a property.
YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE.
Mortgage Calculators
- How much can I borrow?
- How much will it cost?
- What will happen if interest rates rise or fall?
- How much can I borrow on a buy to let mortgage?
- How much rent should I charge?
- Can I change my mortgage lender if I have early repayment charges?
- Effects of making overpayments
- Will my endowment repay my whole mortgage?
- Stamp duty calculator
- All mortgage calculators
Mortgages Guides
- Types of mortgage
- First time buyers
- Fixed vs tracker
- How to pay off your mortgage early
- Offset mortgages
- Remortgaging
- Buy to let mortgages
- Self-build mortgages
- The self-employed mortgage market
- Getting on to the property ladder
- Banks vs building societies
- What happens when your house is undervalued?









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