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Loan refinancing calculator online

Enter the remaining balance on your current loan, its rate and remaining term, plus the new loan's terms — rate, term and refinancing fee. The calculator works out how much money you could save.

One-off costs of refinancing: bank fee, collateral appraisal, insurance — enter 0 if there are none

Result

Refinancing savings

—

Remaining payments on the current loan —
Payments on the new loan including fee —

Your inputs are stored in this browser, so everything is still here next time. Nothing is sent to a server.

This calculation is for informational purposes only and does not replace advice from a qualified professional. Formulas and rates may not fit your exact situation — double-check the figures before making decisions.

How it is calculated

The calculation compares two totals: how much would still be paid on the current loan (annuity payment over the remaining term × number of months) and how much would be paid on a new loan for the same balance (new annuity payment × new term plus the one-off refinancing fee). The difference is the savings, or the extra cost.

Refinancing isn't always worth it even at a lower rate: if the new term is noticeably longer than the old one, total interest can rise despite the lower rate — the calculator accounts for both effects at once, not just a rate comparison.

The refinancing fee eats into the benefit right away — if it's large relative to the interest savings and little time is left on the current loan, refinancing may not pay off. The calculation doesn't include a possible loss of a tax deduction or insurance payout when re-registering — check that separately.

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