Loan Repayment Calculator

Enter the amount, the annual interest rate and the term to see the monthly repayment, the total interest and the total amount repayable.

How this is calculated

This uses the standard amortising loan formula, where every monthly payment is the same and covers both interest and capital. Early payments are mostly interest; later payments are mostly capital.

It assumes a fixed rate, monthly compounding, and no arrangement fees, insurance or early settlement charges. Real facilities usually carry some of those, so treat the result as the baseline rather than the final cost.

Frequently asked questions

Does this work for a business facility?

Yes, for any fixed-rate amortising loan. It does not model running finance, an overdraft, or a facility where the rate moves during the term.

Why does a small rate change move the total so much?

Because interest compounds across the whole term. On a long term, a difference of one or two percentage points changes the total interest substantially, even though the monthly payment moves only a little.

Can you help us decide whether to borrow?

Yes. That is a corporate finance question rather than a calculation one, and it depends on what the money is for and what it will earn. See our advisory services.

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