Mortgage Calculators
Mortgage Calculators
Free UK mortgage calculators — repayments, affordability, stamp duty, overpayments and more.
From working out your monthly repayments to calculating how much you can borrow, our mortgage and property calculators help you make confident decisions about buying a home.
Mortgage Calculator
Calculate monthly mortgage repayments for any loan amount, rate and term. See total interest paid over the full term.
Open calculator →Mortgage Affordability Calculator
Find out how much you could borrow for a mortgage based on your income. Most lenders offer 4 to 4.5 times salary.
Open calculator →Stamp Duty Calculator
Calculate Stamp Duty Land Tax for England and Northern Ireland. Updated for 2025 threshold changes. Includes first-time buyer relief.
Open calculator →Mortgage Overpayment Calculator
Calculate interest savings and years saved by overpaying your mortgage. Even 100 pounds per month extra can save thousands.
Open calculator →Compare Two Mortgages
Compare two mortgage deals side by side. Monthly payments, total interest and overall cost. Free UK mortgage comparison tool.
Open calculator →Offset Mortgage Calculator
Compare an offset mortgage against a standard mortgage with separate savings. See whether offsetting saves you money.
Open calculator →Mortgage Deposit Savings Calculator
Calculate how long it takes to save your mortgage deposit based on monthly savings and target deposit size.
Open calculator →Compare Fixed Rate Mortgages
Compare 2-year and 5-year fixed mortgages. See which fixed term saves you more.
Open calculator →Ditch Your Fixed Rate Calculator
Calculate whether paying an early repayment charge to remortgage at a lower rate would save money.
Open calculator →Mortgage Rate Calculator
See how different mortgage rates affect your monthly payment and total interest paid over the term.
Open calculator →Extend Mortgage Term Calculator
Calculate how extending your mortgage term reduces monthly payments but increases total interest paid.
Open calculator →Council Tax Calculator
Estimate your council tax bill for 2026/27 by property band and local authority. Bills range from £900 to £4000 per year.
Open calculator →Property Value Estimator
Estimate your property market value based on local price trends and property characteristics.
Open calculator →