Free tool

Loan calculator

Enter an amount, interest rate and term to see the monthly repayment and the total interest over the life of the loan.

Loan amount (€)
Annual interest rate (%)
Term (years)
€555.83
Monthly repayment
Total repaid€166,749.74
Total interest€66,749.74
Number of payments300

A €200,000 loan over 25 years at 4.5%

€1,112Monthly repayment
€133,499Total interest
€333,499Total repaid

How amortisation works

On a fixed-rate loan, every monthly payment is the same, but its split changes. Each month, interest is charged on the balance still owed, and the rest of the payment reduces that balance. Early on the balance is large, so most of the payment is interest and little goes to principal. As the balance falls, the interest share shrinks and more of each payment clears the loan. That shift is amortisation, and it is why overpaying early saves far more interest than overpaying late.

Why total interest can rival the loan

Over a long term the interest can approach, or even exceed, the amount borrowed. The longer the term and the higher the rate, the more total interest you pay, even though the monthly payment looks smaller. A shorter term raises the monthly payment but cuts the total cost sharply, which is the trade-off the calculator lets you test.

It uses the standard annuity formula for a fixed-rate loan: the same payment each month covers interest on the outstanding balance plus a slice of principal, so the balance reaches zero at the end of the term.
No. The calculator covers principal and interest only. Arrangement fees, insurance and any variable-rate changes are not included, so your lender's figure may differ.
This assumes a fixed rate for the whole term. For a variable rate the repayment changes when the rate does; use it as a snapshot at the current rate.

Numbers you can trust

Pileform computes every figure with code, never estimates, and keeps the source document attached as proof.

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