German Mortgage Calculator
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What Is a German Mortgage Calculator?
A German mortgage calculator will assist you in estimating how much you will pay every month, how much interest you will pay on the entire loan, and how affordable the loan is, before you apply for and receive a home loan in Germany.
When you intend to purchase a house or apartment in Germany, this calculator provides you with an updated estimation of the monthly payment you will have to pay, depending on the price you pay for the property.
Formula for German Mortgage
A = K × ( i × (1 + i)n ) ÷ ( (1 + i)n – 1 )
- Where:
- A = Monthly annuity (your total monthly payment)
- K = Loan amount (Kreditsumme)
- i = Monthly interest rate = (annual interest rate ÷ 12)
- n = Total number of monthly payments = (years × 12)
All the calculations of the mortgage are based on this formula.
Current German Mortgage Rates (2026 Update)
Below is an overview of average fixed interest rates for 2026:
| Fixed Period | Average Interest Rate | Trend |
|---|---|---|
| 10 Years | 3.2% | Moderate |
| 15 Years | 3.6% | Stable |
| 20 Years | 4.0% | Long-Term Security |

Mortgage Formula Used (With Example)
A = K × ( i × (1 + i)n ) ÷ ( (1 + i)n – 1 )
Example Calculation:
Let’s say you’re taking a €320,000 loan with a 2% fixed annual interest rate for 15 years.
- Monthly Payment = €2,287.62
- Total Interest = €91,772.34
Therefore, your total repayment amount will be approximately €411,772.34 over 15 years.
Factors That Affect Your Mortgage in Germany
In Germany, there are a number of factors that determine how expensive your mortgage will be.
Interest Rate
The rate of interest in Germany is determined by European Central Bank (ECB) policies, inflation rates, and the conditions of your lender. Even a 0.5% difference.
Down Payment
The larger the amount you save during the initial stages, the less the amount you take as a loan, for the amount of interest you pay. German banks minimum down payment of 20%.
Fixed Interest Period
Choosing a longer fixed period (e.g., 15 or 20 years) offers payment stability, but usually comes with a slightly higher rate.
Repayment Rate
This is the annual amount of the loan repayment. An increased repayment rate will reduce the loan term and consequently lower.
Location
There are regions where property values are higher and the conditions of lending are a little different, such as Berlin, Munich, or Frankfurt.
