Under the current assumptions, variable produces a lower total borrowing cost.
Core comparison
Fixed payment now
€0
starting payment
Variable payment now
€0
starting payment
Fixed interest
€0
full-term estimate
Variable interest
€0
full-term estimate
5-year fixed cost
€0
5-year variable cost
€0
Break-even gap
€0
Fixed-rate view
Initial rate
0.00%
Fixed period
0 yrs
Rate after fixed period
0.00%
Upfront fees
€0
Total estimated cost
€0
Variable-rate view
Starting rate
0.00%
Annual rate change
0.00 pp
Rate cap / floor
0%
Upfront fees
€0
Total estimated cost
€0
Scenario comparison
Fixed
€0
interest
Variable
€0
interest
Variable stress
€0
interest
Cal insight
Enter fixed and variable assumptions to compare monthly payment pressure, total interest, fees and rate-change risk.
Rate cost structure
Fixed total interest
Variable total interest
Cost gap
Scenario table
Scenario
Total interest
Total cost
Start payment
5-year cost
5-year outlook
Year
Fixed rate
Variable rate
Fixed payment
Variable payment
What this calculator does
This calculator compares fixed and variable mortgage structures using the same loan amount and term. It estimates payment levels, total interest, fees and how rate movements can change the variable-rate outcome.
Core logic
Total cost = total interest + upfront fees
Fixed-rate path = fixed rate for fixed period, then follow-on rate
Variable-rate path = starting rate ± annual changes within cap and floor bounds
Why the comparison matters
Fixed rates offer predictability, while variable rates can be cheaper or more expensive depending on the interest-rate path. The trade-off is usually certainty versus flexibility and rate exposure.
How to use it properly
Use realistic follow-on fixed rates and realistic annual variable-rate changes. The quality of the result depends heavily on the rate path you assume after origination.
Frequently asked questions
Fixed usually gives more payment certainty, but that does not automatically make it cheaper. Safety and cost are separate issues.
Yes. If rates stay low or fall, variable can outperform fixed. If rates rise sharply, variable can become more expensive.
The future path of variable rates is usually the most important assumption, because it drives both payment volatility and total cost.
Yes. Upfront fees can change which option is actually cheaper, especially over shorter holding periods.
No. It is a decision-support calculator. Your lender’s product terms and payment disclosures remain the official basis for borrowing decisions.
Then the shorter-horizon cost view may matter more than full-term cost, which is why the 5-year comparison is included.