Norway Mortgage Calculator

Work out the monthly payment on a Norwegian mortgage based on home value, down payment, interest rate and term — and see if your down payment covers the 10 % requirement.

Monthly payment
20,900 kr
Annuity loan, 25 years
Loan amount
3,400,000 kr
Loan-to-value ratio
85 %
Scenario: What happens with +1 percentage point interest?

At % interest, the monthly payment would be more per month than today.

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How to use the mortgage calculator

  1. Enter the home value or purchase price.
  2. Enter how much down payment you have available.
  3. Enter the expected interest rate and term — the calculator shows the monthly payment, loan amount and loan-to-value ratio.

How the mortgage is calculated

The loan amount is the home value minus your down payment. The monthly payment is then calculated using the same annuity formula banks use for fixed monthly payments:

Monthly payment = L × r ÷ (1 − (1 + r)−n)
where L is the loan amount, r is the monthly interest rate (annual rate ÷ 12 ÷ 100), and n is the number of months.

Loan-to-value ratio (LTV) is how large a share of the home value is financed by the loan, calculated as loan amount ÷ home value × 100. Norway's lending regulation normally requires at least 10 % down payment, i.e. a maximum 90 % loan-to-value ratio.

Note: This is a simplified calculation without origination fees, installment fees or the effective interest rate, and doesn't account for banks' ability-to-pay requirements (interest rate stress test) or debt-to-income limits. The actual loan offer from a bank may differ. This calculator applies to Norwegian mortgage rules only.
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Frequently asked questions

Do I always need 10 % down payment?

Yes, as a general rule Norway's lending regulation requires at least 10 % down payment when buying a home (lowered from 15 % as of January 1, 2025). Some exceptions exist, including the use of a guarantee from family or BSU savings in combination with other schemes.

What's the difference between the mortgage calculator and the loan calculator?

The mortgage calculator starts from home value and down payment to find the loan amount, and also shows the loan-to-value ratio. The general loan calculator lets you enter the loan amount directly, and so suits any type of loan.

Why does the bank require an interest rate stress test in its calculation?

Norwegian banks are required to check that you can handle an interest rate increase of 3 percentage points, but in any case a rate of at least 7 % (an interest rate stress test), before approving the loan, to ensure you can service it even if rates rise.

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