Mortgage Calculator
Work out monthly mortgage payments, total interest and loan-to-value for a UK repayment or interest-only mortgage.
Frequently asked questions
Is this tool free?
Yes. Calchemy tools are free to use in your browser.
Is my data uploaded?
No. The tools are designed to run locally in your browser unless clearly stated otherwise.
Is this financial advice?
No. This is a simple calculator for illustration only, not a mortgage offer or financial advice. Actual rates, fees and eligibility depend on your lender and circumstances, so speak to a mortgage adviser for a real quote.
What's the difference between repayment and interest-only?
A repayment mortgage pays off both the loan and the interest over the term, so it's cleared by the end. An interest-only mortgage only pays the interest each month, meaning the full loan amount is still owed at the end of the term.