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Mortgage Calculator

Calculate your mortgage precisely

Go beyond a simple payment calculator. Full mortgage analysis with monthly payment, amortization schedule, extra payment impact, refinancing comparison, fixation end scenarios, and invest vs repay decision — all in one place.

01

Mortgage Parameters & Loan Overview

Enter your property price, down payment percentage, interest rate, and repayment period. Instantly see the calculated loan amount, LTV ratio, and affordability check against your income.

Property price 200 000 €
Down payment
20% 40 000 €
Interest rate 4.90%
Repayment period 30 years

Loan amount

160 000 €

Affordability

27% OK

02

Monthly Payment & Cost Summary

Key metrics at a glance — your monthly payment, total amount paid over the life of the loan, total interest cost, and loan-to-value ratio. Know exactly what your mortgage will cost.

Monthly payment

850 €

/month

Total paid

305 500 €

Total interest

145 500 €

LTV ratio

80.0%

03

Payment Structure Visualization

Donut chart shows how your total payments split between principal and interest. Line chart reveals how the principal portion of each payment grows over time while the interest portion shrinks.

Payment breakdown

Principal

160 000 €

52.3%

Interest

145 500 €

47.7%

Principal vs Interest over time

Principal
Interest
04

Detailed Amortization Schedule

Year-by-year or month-by-month breakdown showing each payment split into principal and interest, remaining balance, and cumulative totals. Switch between annual and monthly view for any level of detail.

Yearly Monthly
Year Payment Principal Interest Balance
1254 74860 260194 4883 939 740
2254 74863 283191 4653 876 457
3254 74866 456188 2923 810 001
4254 74869 787184 9613 740 214
5254 74873 285181 4633 666 929

... 25 more years

05

Extra Payment Analysis

See the impact of extra payments on your mortgage. Enter a one-time or recurring extra payment and instantly see how much interest you save, how many months you cut off, your new monthly payment, and your new payoff date.

Extra payment 4000 €
Date 30.4.2027
Reduce payment Shorten term

Saved interest

4100 €

Saved months

7 months

New payment

830 €

New payoff date

30.4.2056

06

Refinancing Analysis

Compare your current mortgage rate with a new offer. See monthly savings, total savings over remaining term, payback period for refinancing costs, and a clear recommendation whether refinancing is worth it.

Current rate

4.90%

New rate

4.80%

Refinancing cost

1600 €

Current

Monthly payment

850 €

Total cost

305 500 €

New

Monthly payment

840 €

Total cost

304 000 €

Monthly saving

10 €

Total saving

1900 €

Payback period

165 months

✓ Worth it!
07

Fixation Scenarios & Investment Comparison

What happens when your fixation period ends? See 4 interest rate scenarios from optimistic to extreme. Plus: should you invest extra cash in the market or pay off your mortgage faster? Data-driven comparison with clear recommendation.

Fixation end scenarios

Optimistic2.9%
690 €-160 €
Realistic5.4%
890 €+45 €
Pessimistic6.9%
1000 €+180 €
Extreme8.9%
1200 €+370 €

Invest vs Repay

Repay mortgage

Saved interest12 500 €
Saved months19 months
Benefit12 500 €

Invest

Portfolio value30 500 €
Profit26 500 €
Benefit26 500 €
📈 Better to invest

How it works

Three simple steps to optimize your mortgage

1

Set Your Parameters

Enter property price, down payment, interest rate, and repayment period. The calculator instantly computes your loan amount and affordability.

2

Analyze the Results

Review your monthly payment, amortization schedule, payment structure charts, and key cost metrics to understand your mortgage fully.

3

Optimize Your Mortgage

Use extra payment analysis, refinancing comparison, and fixation scenarios to find the best strategy and save thousands.

Ready to calculate your mortgage?

Complete mortgage analysis with amortization, refinancing, and optimization tools.

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