Home Loan Repayment Calculator — United Kingdom
Work out your repayments, what the loan costs in total, and how much an extra repayment saves you. Figures below assume 5% over 30 years. Free, and no sign-up.
Common United Kingdom loan amounts
| Loan amount | Monthly repayment | Total interest |
|---|---|---|
| £150,000 | £805 | £139,884 |
| £200,000 | £1,074 | £186,512 |
| £250,000 | £1,342 | £233,139 |
| £300,000 | £1,610 | £279,767 |
| £400,000 | £2,147 | £373,023 |
| £500,000 | £2,684 | £466,279 |
Frequently asked questions
How are United Kingdom home loan repayments calculated?
Repayments use the standard amortisation formula: the balance accrues interest at the periodic rate, and a level repayment covers that interest plus a slice of principal. Early payments are mostly interest; later ones are mostly principal.
Does paying extra actually help?
Yes, substantially. Extra repayments come straight off the principal, so they reduce every future interest charge. On a long loan even a small regular amount can cut years off the term.
Is this calculator free?
Yes. It is free, requires no account, and nothing you enter is saved or sent anywhere — the calculation runs entirely in your browser.
Work out your own numbers
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Estimate only. Assumes a fixed rate and no fees; lenders accrue interest daily and may charge account or discharge fees. Not financial advice.