Mortgage calculators
Free, easy-to-use tools to help you plan every stage of your mortgage — from working out what you can borrow, to comparing remortgage savings, to understanding the cost of overpaying early.
Buying a home
How much can I borrow?
Estimate your maximum mortgage based on income, deposit and outgoings.
Affordability calculator
Check what monthly payment is realistic based on your income, debts, dependants and bills.
Shared ownership calculator
True monthly cost of part-buying, part-renting: mortgage, rent and service charge combined.
Deposit calculator
Work out how much deposit you need and how long it'll take to save.
Stamp Duty calculator
Calculate the Stamp Duty Land Tax due on your property purchase.
Loan to Value calculator
See your LTV ratio and how it affects the rates you can access.
Mortgage payments
Mortgage repayments calculator
Work out your monthly payment based on loan amount, rate and term.
Overpayment calculator
See how much interest and time you'd save by overpaying your mortgage.
Mortgage comparison calculator
Compare two deals side by side, including product fees, to see which is actually cheaper.
Remortgaging
Specialist mortgages
Buy-to-let calculator
Estimate rental yield, monthly profit and lender rental cover.
Development finance calculator
Model a development scheme: Loan to Cost, Loan to GDV, interest and total facility cost.
Second charge mortgage calculator
Estimate the monthly cost of borrowing more against your home with a second charge mortgage.
Self-employed mortgage calculator
Estimate how much you may be able to borrow based on your self-employed income, deposit and monthly commitments.
Right-to-Buy mortgage calculator
Estimate your discounted purchase price, mortgage amount and whether your discount could cover the deposit.
Forces Help to Buy calculator
Estimate how much you may be able to borrow through Forces Help to Buy and what the monthly repayment could look like.