Mortgage payment calculator
Estimates the monthly cost of a mortgage. Toggles repayment or interest-only across any rate, term and loan size.
Mortgage payment calculator
Enter your numbers above for an indicative monthly payment, total cost over the term, and a rate-sensitivity table.
Next step: book a quick 15-minute call and we will check your figures against over 65 lenders. No credit check, no obligation.
If your rate moves
| Rate | Monthly payment | Change vs current |
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Year-by-year balance
| Year | Balance | Interest paid | Principal paid |
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This calculator gives an indicative monthly payment based on the inputs you provide. Actual lender offers depend on full underwriting, your credit profile, the property valuation, and lender-specific criteria. Rates available to you may differ from the rate you enter here. Think carefully before securing other debts against your property. Your property may be repossessed if you do not keep up repayments on your mortgage. Major Money Matters Ltd is an appointed representative of Sesame Ltd which is authorised and regulated by the Financial Conduct Authority. FCA reference 409534.
How to read this result
The headline figure is the monthly mortgage payment for the loan size, rate and term you entered. Repayment shows capital plus interest, so the loan reduces to zero by the end of the term. Interest-only shows interest only, so the loan stays the same and you need a separate plan to repay it.
What the calculator does not include: lender product fees, valuation costs, legal fees, buildings insurance, life cover, and any service charge or ground rent on a leasehold. Budget for those separately when you scope the total monthly outgoing.
Comparing two rates is the calculator's strongest use. Run the same loan size and term against your current rate and a target rate, and you have an honest monthly difference. That number, multiplied by the months left on a fix, tells you the savings ceiling on a switch.
If the monthly figure is uncomfortable, the lever is usually the term. Stretching from 25 to 30 years cuts the payment but adds interest over the life of the loan. We can run both side by side on a call and tell you which makes sense.
Related guides
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Income multiples, lender stretch, and how monthly affordability ties back to the loan size you can support.
Read guideFixed vs variable rates
Two-year fix, five-year fix, tracker, discount. The difference, the trade-offs, and what most clients pick.
Read guideMortgage types explained
Repayment versus interest-only, capital and interest, and the right structure for first-time buyers, movers and landlords.
Read guideFind a rate that works on your number
We compare over 65 lenders. The right product for your case may be materially different to the rates you have seen advertised.
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