What your loan result shows
The payment is fixed for the life of an amortised loan, but its composition is not: early payments are mostly interest, later ones mostly principal. The interest as a share of what you repay line captures the whole cost in one number — on a short personal loan it might be a tenth, on a long one at a high rate it can approach half.
If you enter a fee, two more lines appear and they are the reason this page exists. What you actually receive is the loan minus the fee, because an origination fee is deducted from the money that reaches you — while you repay the full amount borrowed. Effective APR with fees converts that into a comparable rate: the rate a fee-free loan would need to charge to cost you the same. It is always higher than the stated rate, and on a short term it is dramatically higher, because the fee is spread over fewer months.
How to use this loan calculator
- Amount, rate and term from the offer. Use the interest rate, not the lender’s quoted APR — entering an APR and a fee together would double-count the fee.
- Origination fee as a percentage. Personal-loan fees commonly run from nothing to 8%, and they are frequently buried in the disclosure rather than the headline.
- Advanced holds odd terms (three years plus six months), other closing charges, and an extra monthly payment.
- Compare offers on the effective APR, never on the payment. A lower payment usually just means a longer term, and a longer term costs more.
This works for any fixed-rate loan — personal, auto, student, business or a simple mortgage. Purpose-built calculators exist for mortgages and auto loans, which add escrow and trade-in respectively.
Why the fee changes the rate
Borrow $25,000 at 9.5% over five years with a 5% origination fee and you receive $23,750 — but the payment is calculated on $25,000, and you repay all of it. You are effectively paying 9.5% on money you never had, which is exactly what the effective-APR figure measures.
The shorter the term, the worse the arithmetic. A 5% fee spread over five years adds roughly two percentage points to the true cost; the same fee on a two-year loan adds far more, because there are fewer payments to absorb it. That is why a fee-free loan at a slightly higher stated rate frequently beats a low-rate loan with a fee, and why comparing headline rates alone is a reliable way to pick the wrong offer.
Federal Truth in Lending rules require lenders to disclose an APR that includes most fees, which is the figure to compare across offers. This calculator reconstructs it so you can check the disclosure rather than take it on trust — and so you can see what a fee you are told is "standard" actually costs.
How loan payments are calculated
M = P · i(1 + i)n ⁄ ((1 + i)n − 1)
- M — the monthly payment
- P — the amount borrowed
- i — the monthly rate, the annual rate divided by twelve
- n — the number of payments
Every fixed-rate amortised loan uses that one formula, whatever the lender calls the product. The schedule that follows is a loop: interest on the outstanding balance, the remainder to principal, repeat — which the amortization calculator sets out payment by payment.
A deferred loan works differently: nothing is paid until maturity, so the balance compounds untouched and a single payment settles it. That structure appears in some business and bridge lending, rarely in consumer credit.
What actually makes a loan cheaper
- A shorter term. The single biggest lever: fewer months of interest on a faster-falling balance. It raises the payment, which is why lenders lead with the longer option.
- A better rate, which usually means a better credit score. Improving it before applying is worth more than negotiating afterwards.
- No origination fee, or a smaller one — see above for why this is worth more than a small rate cut on a short term.
- Extra payments, if the loan has no prepayment penalty. Check: some lenders apply extra money to future instalments rather than principal, which achieves nothing.
- Not borrowing the maximum offered. Approval amounts are set by what a lender will risk, not by what you need.
What this calculator assumes
- A fixed rate for the whole term. A variable-rate loan follows this schedule only until it moves.
- Monthly payments, made on time, with interest charged monthly on the balance.
- Fees deducted at closing rather than added to the balance. Some lenders do the latter, which raises the payment instead of lowering the proceeds.
- No prepayment penalty on the extra-payment figure.
- No insurance or add-on products, which some lenders bundle into the financed amount.
These are planning estimates. The lender’s Truth in Lending disclosure is the authority on the payment, the APR and the fees.
Loan questions people ask
What is the difference between the interest rate and the APR?
The interest rate is what accrues on the balance. The APR includes most fees as well, expressed as a yearly rate, which makes it the figure to compare between offers. If a lender quotes both and they differ, the gap is the fees.
Does a longer term mean a cheaper loan?
A smaller payment, not a cheaper loan. Stretching the term reduces each payment but adds months of interest on a balance that falls more slowly, so the total cost rises — often substantially. Compare total interest at two terms rather than judging on the payment.
Can I pay a loan off early?
Usually yes, and on most personal and auto loans there is no penalty. Confirm two things in the agreement: that there is no prepayment charge, and that extra money is applied to principal rather than held as a prepayment of the next instalment.
Is an origination fee negotiable?
Sometimes, and it is always worth asking — particularly if you have competing offers. Where it is not, treat it as part of the price: run both offers through the effective-APR figure above and pick on that rather than on the stated rate.