Mortgage Calculator UK - Estimate Monthly Mortgage Payments | Fundslender 

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Mortgage Calculator

Estimate monthly mortgage repayments using your property value, deposit, rate, and mortgage term. This is a planning tool only, not a lender quote or approval decision.

 


Important: This calculator gives indicative figures only. It does not include arrangement fees, valuation fees, conveyancing costs, insurance, or lender-specific affordability rules. For personalised mortgage advice, speak to an FCA-authorised mortgage adviser.

Estimate Your Mortgage Payment

Enter a few core figures to see an estimated monthly payment, total interest, and loan-to-value.

Assumes a constant interest rate over the full term. Real mortgage payments can change if your rate or product changes.

Your Estimated Results

Use this as a planning estimate, then compare it against your broader budget and affordability.

Estimated loan amount

£255,000

Estimated monthly payment

£1,453

Loan-to-value

85.0%

Total interest over term

£180,877

Total repayable

£435,877

Balance remaining at term end

£0

Assumptions to keep in mind

  • This estimate excludes lender fees, legal fees, valuation fees, insurance, and early repayment charges.
  • Interest-only mortgages leave the original loan balance outstanding at the end of the term unless you repay it separately.
  • Lenders will still run affordability checks based on income, commitments, credit profile, and stress-testing.

Quick answer

A mortgage payment is mainly driven by four figures: the amount you borrow, the interest rate, the term, and whether the mortgage is repayment or interest-only. Lower rates, larger deposits, and longer terms reduce the monthly payment, but a longer term also increases total interest paid.

What This Calculator Helps You Test

This tool is useful for comparing deposits, testing how a rate rise affects monthly cost, and seeing how much extra interest a longer term can create. It is best used as a budgeting aid before you request a Decision in Principle or speak to an adviser.

What It Does Not Replace

A payment calculator does not tell you whether a lender will approve you. Mortgage lenders also assess income, committed outgoings, credit history, employment type, and stress-tested affordability before deciding how much they are prepared to lend.

 

Disclosure

Fundslender is a UK borrowing information and guidance website. We do not lend money directly. When you use this site, you may be connected with regulated lenders or brokers. We may receive a fee or commission if you proceed with a product found through our site. This does not affect our editorial independence or the information we provide. Rates, terms, and approval decisions are set by each individual lender and will vary based on your personal circumstances. Approval is not guaranteed. All borrowing involves risk. Always compare your options, read the full terms, and seek independent regulated financial advice if you are unsure whether a product is right for you. How we make money · Editorial policy