UK Mortgage Calculator

Estimate your monthly repayment in pounds from the loan amount, interest rate and term. Defaults reflect current UK market conditions (May 2026 rates).

How much can you borrow — and what will it cost?

UK mortgage lenders typically allow you to borrow 4 to 4.5 times your annual income, sometimes up to 5.5× for higher earners or specific first-time-buyer products. Affordability also depends on your other commitments and a stress-test rate a few points above the headline.

Typical UK mortgage rates (May 2026)

ProductTypical rate
2-year fixed, 60% LTV~4.4–4.6%
5-year fixed, 60% LTV~4.2–4.5%
2-year fixed, 80% LTV~4.6–5.0%
Standard Variable Rate~7.0–8.0%
Bank of England base rate3.75%

Monthly payment at a glance (25-year term)

Quick reference — monthly repayment at various loan sizes and rates:

Loan3.5%4.0%4.5%5.0%5.5%6.0%
£100,000£501£528£556£585£614£644
£150,000£751£792£834£877£921£966
£200,000£1,001£1,056£1,112£1,169£1,228£1,289
£250,000£1,252£1,320£1,390£1,461£1,535£1,611
£300,000£1,502£1,584£1,667£1,754£1,842£1,933
£400,000£2,002£2,111£2,223£2,338£2,456£2,577
£500,000£2,503£2,639£2,779£2,923£3,070£3,222

Mortgage calculators by loan amount

For a detailed breakdown at a specific loan size — including a worked example and payment table for that amount — pick your target below:

Costs the calculator does not include

The monthly repayment above covers principal and interest only. Your real cost of buying and owning a UK home also includes:

Worked example — £250,000 over 25 years at 4.62%

Borrowing £250,000 at a typical 4.62% 2-year fix rate on a 25-year term:

Monthly payment: £1,407 · Total interest over 25 years: ~£172,000

Extending the term to 30 years lowers the monthly to about £1,288 but pushes total interest above £214,000. A shorter term costs more month-to-month but far less over the life of the loan.

Frequently asked questions

How much can I borrow for a UK mortgage?
Lenders typically allow 4–4.5× your annual income, sometimes up to 5.5× for higher earners or specific products. Your other commitments and the affordability stress test also matter.
What deposit do I need in the UK?
Most lenders want at least 5%, but rates improve sharply at 10%, 15%, 20% and 40% deposit thresholds (LTV bands). A 40% deposit unlocks the lowest rates on the market.
Should I choose a 2-year or 5-year fix?
A 2-year fix is often cheaper today and lets you remortgage sooner if rates fall. A 5-year fix locks in certainty for longer at a small premium.
Is a 25-year mortgage still the default in the UK?
Historically yes, but 30- and 35-year terms are increasingly common as house prices have risen. A longer term lowers the monthly payment but significantly increases total interest.
Can I make overpayments?
Most UK mortgages allow up to 10% overpayment per year without penalty during a fixed term, and unlimited overpayments on variable products. Overpayments reduce the interest you pay.

Estimates are for general information only, not financial advice. Confirm exact figures with your lender or an authorised broker.