Loan Calculator
This loan calculator shows your exact periodic payment, the total interest you will pay and the full amortization schedule for any consumer or business loan. Example: a EUR 25,000 loan at 6.5% over 60 months produces a monthly payment of about EUR 489 and roughly EUR 4,330 in total interest.
| Period | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| 1 | CHF 489 | CHF 354 | CHF 135 | CHF 24'646 |
| 2 | CHF 489 | CHF 356 | CHF 134 | CHF 24'291 |
| 3 | CHF 489 | CHF 358 | CHF 132 | CHF 23'933 |
| 4 | CHF 489 | CHF 360 | CHF 130 | CHF 23'574 |
| 5 | CHF 489 | CHF 361 | CHF 128 | CHF 23'212 |
| 6 | CHF 489 | CHF 363 | CHF 126 | CHF 22'849 |
| 7 | CHF 489 | CHF 365 | CHF 124 | CHF 22'483 |
| 8 | CHF 489 | CHF 367 | CHF 122 | CHF 22'116 |
| 9 | CHF 489 | CHF 369 | CHF 120 | CHF 21'747 |
| 10 | CHF 489 | CHF 371 | CHF 118 | CHF 21'375 |
| 11 | CHF 489 | CHF 373 | CHF 116 | CHF 21'002 |
| 12 | CHF 489 | CHF 375 | CHF 114 | CHF 20'626 |
How to use this calculator
- 01Enter the total amount you intend to borrow.
- 02Set the nominal annual interest rate offered by the lender.
- 03Choose the term in months — shorter terms cost less in interest.
- 04Pick monthly or weekly payment frequency to match your contract.
- •The annuity formula keeps each payment constant for the life of the loan.
- •Early payments are mostly interest; later payments are mostly principal.
- •Weekly payments slightly reduce total interest versus monthly.
- •APR can differ from the nominal rate once fees are included.
Frequently asked questions
How is the monthly loan payment calculated?
It uses the standard annuity formula P = L · r / (1 − (1 + r)⁻ⁿ), where L is the loan amount, r the periodic rate and n the number of periods. The result keeps every payment identical until the loan is fully repaid.
What is the difference between APR and interest rate?
The nominal rate is the headline cost of borrowing. The APR additionally includes mandatory fees and is usually higher — it is the better number to compare two competing loan offers.
Does paying weekly save money?
Slightly. Paying weekly reduces the balance more often, so less interest accrues. Over a five-year loan the saving is typically 1–3% of total interest.
Can I model an early repayment?
Not yet. The calculator assumes the full schedule is followed. A lump-sum repayment generally lowers both your remaining balance and total interest paid.
Are the results legally binding?
No. They are mathematical estimates based on your inputs. Always check the binding offer issued by your lender, which may add fees, insurance and other costs.
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