Mortgage term comparison calculator
Mortgage term comparison
Compare mortgage durations and see how the results change.
Compare mortgage terms
Illustrative The amount currently owed on the mortgage, before any new fees or planned overpayments.
£
The annual mortgage interest rate used in this illustration.
%
Explains how this input is used in this illustrative mortgage calculation. Check your mortgage offer or other source document for the exact figure.
years
Terms to compare
Choose at least two terms. All scenarios use the same balance and interest rate.Lowest monthly payment
£1,183
Term35 years
Highest payment£1,582
Interest range£117,330
Longer terms usually lower monthly payments but increase total interest.Age at repayment is shown only as a planning guide, and lenders can set their own maximum term and age policies.
Assumptions and limits⌄
Illustrative repayment-mortgage scenarios. The calculation assumes an unchanged interest rate, no fees, overpayments or payment holidays.
Term trade-offs
Payment, interest and balance
| Term | Monthly payment | Total interest | Age repaid | Balance after 5 years | Balance after 10 years |
|---|---|---|---|---|---|
| 20 years | £1,582 | £129,590 | 55 | £206,750 | £152,610 |
| 25 years | £1,390 | £166,874 | 60 | £219,645 | £181,646 |
| 30 years | £1,267 | £206,017 | 65 | £227,895 | £200,224 |
| 35 years | £1,183 | £246,920 | 70 | £233,506 | £212,859 |