UK Mortgage Calculators
Use these tools to compare rate, fee and payment assumptions before requesting an adviser-led rate comparison. Results are examples only and are not a quote or approval decision.
Mortgage Repayment Calculator
Compare payment examples using different rates, deposits and terms.
Calculate repaymentsHow Much Can I Borrow?
Estimate a borrowing range before comparing products by loan-to-value.
Estimate borrowingRemortgage Calculator
Compare your current payment with possible new-rate scenarios.
Check remortgage optionsBuy-to-Let Yield Calculator
Compare rental yield assumptions alongside possible mortgage costs.
Calculate rental yieldMortgage Overpayment Calculator
See how overpayments could shorten your term and save interest.
Estimate overpayment savingsSelf-Employed Mortgage Calculator
Borrowing estimate for sole traders, contractors and Ltd directors.
Speak to a brokerStamp Duty Calculator
Estimate SDLT for England and NI, including first-time buyer relief and additional-property surcharge.
Calculate Stamp DutyRate Scenario Calculator
Compare illustrative rate examples by estimated monthly payment and initial-period cost.
Compare rate examplesMortgage calculators by city
Start with a city page for local context, then use the calculators as estimates before any adviser conversation.
Need help comparing real mortgage products?
Our calculators give estimates only. Lender-specific products, rates and eligibility come from an authorised mortgage adviser.
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Related calculators and guides
Rate comparison with context
Compare Mortgage Rates is built around comparing mortgage costs beyond the headline rate. Product fees, term, loan-to-value and lender criteria can all change what is appropriate for a borrower.