Property & rentals
Mortgage Payment Calculator
The standard repayment-mortgage formula: amount, rate and term in, monthly payment and lifetime interest out.
Calculator
Fill in the fields above to see results.
How it works
Uses standard monthly amortisation: payment = P x r / (1 - (1+r)^-n), where r is the monthly rate and n the number of months. Works for any currency - it never leaves the ratio.
Frequently asked questions
How is a mortgage payment calculated?
The lender spreads the loan plus compounding interest over equal monthly payments. Early payments are mostly interest; later ones mostly capital - which is why overpaying early saves the most.
Does this work for interest-only?
Interest-only is simpler: amount x annual rate / 12. This calculator models a repayment mortgage, where the balance reaches zero at the end of the term.