Understanding your monthly mortgage repayments is the first step in planning a property purchase or remortgage. This calculator gives you an instant repayment figure based on your loan amount, interest rate and term — for both repayment and interest-only mortgages.

Current UK mortgage rates (2025)

Average 2-year fixed rates are around 4.5–5.5% for 60–75% LTV. See our best remortgage deals guide for the latest rates from top UK lenders.

Don't forget Stamp Duty

Use our Stamp Duty calculator to factor SDLT into your total upfront costs.

Frequently asked questions

How accurate is this calculator?+

Uses the standard mortgage repayment formula — precise based on your inputs. Actual lender repayments may vary slightly.

Does it include fees and insurance?+

No — this calculates pure capital and interest. Add arrangement fees and insurance separately.

What is LTV?+

Loan-to-Value — the mortgage as a percentage of the property value. Lower LTV typically means lower interest rates.

Repayment vs interest-only?+

Repayment covers interest plus capital — loan fully paid at term end. Interest-only covers only interest — full loan still owed at the end.

Where can I find current mortgage rates?+

See our best remortgage deals guide for current rates.

Part of our complete guide:

UK Mortgage Rates April 2026 - Current Rates & Guide →

Find a whole-of-market mortgage broker →

Kael Tripton Deals

Verified UK deals: bank switch bonuses, savings rates, insurance offers and more

Checked against provider pages and updated weekly. Every listing labelled. No commission on any financial offer.

See all offers →

Editorial Disclaimer

The content on Kaeltripton.com is for informational and educational purposes only and does not constitute financial, investment, tax, legal or regulatory advice. Kaeltripton.com is not authorised or regulated by the Financial Conduct Authority (FCA) and is not a financial adviser, mortgage broker, insurance intermediary or investment firm. Nothing on this site should be construed as a personal recommendation. Rates, figures and product details are indicative only, subject to change without notice, and should always be verified directly with the relevant provider, HMRC, the FCA register, the Bank of England, Ofgem or other appropriate authority before any financial decision is made. Past performance is not a reliable indicator of future results. If you require regulated financial advice, please consult a qualified adviser authorised by the FCA.

Chandraketu Tripathi

Finance Editor · Kaeltripton.com

Chandraketu (CK) Tripathi, founder and lead editor of Kael Tripton. 22 years in finance and marketing across 23 markets. Writes on UK personal finance, tax, mortgages, insurance, energy, and investing. Sources: HMRC, FCA, Ofgem, BoE, ONS.