Mortgage
Calculator

Calculate your monthly payment, total loan cost and how much you will pay in interest over the term. Compare different scenarios before deciding.

Loan details

Total price of the property
$
Percentage of property value paid upfront
10%30%50%
Down payment: $90.000.000
Effective annual rate of the mortgage
5%12%25%
5 years20 years30 years
Loan summary
Estimated monthly payment $0
Loan amount $0
Total paid to bank $0
Total in interest $0
Recommended payment / income ratio —
Principal Interest
0% 0%

Annual amortization

Year Interest paid Remaining balance

Illustrative calculator. The real payment may vary due to insurance, notary costs and other bank charges. Consult your financial institution.

How is the mortgage payment calculated?

The monthly payment is calculated with the French amortization formula: C = P × [r(1+r)ⁿ] / [(1+r)ⁿ−1], where P is the loan amount, r the monthly rate and n the number of payments. In this system the payment is fixed but the proportion between principal and interest changes — at first you pay more interest, at the end more principal.

The general rule is that the monthly payment should not exceed 30% of your net monthly income to avoid compromising your financial stability. Some banks allow up to 40%, but that leaves little margin for unexpected events.

Before taking out a mortgage, always compare the Total Financial Cost (TFC) or the real Annual Percentage Rate (APR) that includes all associated costs — not just the nominal rate.

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