How it works
Most European mortgages are annuity loans: you pay the same amount every month, but the mix shifts over time — early payments are mostly interest, later payments mostly principal. Your monthly payment depends on just three numbers: the amount borrowed, the interest rate and the term.
This calculator gives you the exact monthly payment, the total interest you will pay over the life of the loan, and a year-by-year amortization summary showing how your balance falls. Small rate differences compound dramatically: on a €250,000 loan over 25 years, one extra percentage point costs roughly €35,000 in additional interest.
Annuity payment formula
M = P × r ÷ (1 − (1 + r)⁻ⁿ)M = monthly payment, P = loan amount, r = annual rate ÷ 12, n = number of monthly payments. With a 0% rate the payment is simply P ÷ n.