Mortgage calculator
See what the mortgagecould cost each month.
Change the property value, deposit, illustrative rate, term and repayment type. See how every assumption changes the estimate.
Start with the exampleMortgage lab
Touch the numbers.
See the possibility.
An illustrative estimate—live, tactile and private.
- Mortgage
- £315,000
- Deposit
- £135,000
- Total interest
- £210,262
£315,000 mortgage · 70% LTV · repayment
Nothing here is drawn from a live lender feed.Read the result
One useful figure.
Four visible assumptions.
The estimate is only as meaningful as the numbers beneath it. Change an input and the corresponding assumption changes here too.
- Rate used
- 4.50%
- Term used
- 25 years
- 300 monthly payments
- Deposit used
- 30% · £135,000
- Method used
- Capital and interest
- A standard repayment formula that reduces capital over the term.
Calculator FAQ
Before you use
the result.
01How is the repayment estimate calculated?
It uses the mortgage amount, monthly interest rate and number of monthly payments in the standard amortisation calculation.
02Is the illustrative interest rate a current OMF rate?
No. It is an example input for exploring the calculation, not a live rate, recommendation or lender offer.
03Why does interest-only leave capital to repay?
Because each monthly payment covers interest only. The mortgage balance is not reduced, so the original capital remains due at the end of the term.
Illustrative only—not a mortgage offer, recommendation or eligibility decision. Rates, fees, taxes and lender criteria vary.
From estimate to application
Keep the useful number.
Add the human detail.
A calculator can show the maths. An OMF broker can add your circumstances, current lender criteria and the costs around the mortgage.
