Personal Loan Calculator

Unsecured borrowing at the rates lenders really quote — and the two-piece arithmetic that decides whether the money is worth taking: the payment, and the fee that never shows up in the headline rate.

Loan details

$
%
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Applied to principal every month. Fixed-rate loans normally allow this without penalty — check yours first.

Estimated monthly payment

$491.08

Total interest

$2,678.91

Total payment

$17,678.91

Principal 84.8%Interest 15.2%

Payment schedule

Showing 12 of 36
MonthPaymentPrincipalInterestBalance
1$491.08$353.58$137.50$14,646.42
2$491.08$356.82$134.26$14,289.60
3$491.08$360.09$130.99$13,929.50
4$491.08$363.39$127.69$13,566.11
5$491.08$366.72$124.36$13,199.39
6$491.08$370.09$120.99$12,829.30
7$491.08$373.48$117.60$12,455.82
8$491.08$376.90$114.18$12,078.92
9$491.08$380.36$110.72$11,698.56
10$491.08$383.84$107.24$11,314.72
11$491.08$387.36$103.72$10,927.35
12$491.08$390.91$100.17$10,536.44

Each row shows how the same payment splits differently as the balance falls — the interest column shrinks and the principal column grows.

Reviewed by LoanCalcly Editorial · Published September 20, 2026

Three worked examples

Personal loan pricing varies enormously between borrowers, so no single rate is “typical”. What does transfer is the shape of the maths: at these amounts and terms, here is what a lender would show you.

AmountRateTermMonthlyTotal interest
$15,00011.0%3 years$491.08$2,679
$20,0009.5%5 years$420.04$5,202
$25,00012.5%5 years$562.45$8,747

Fixed-rate, fully amortising, no fees. Figures rounded to the nearest dollar for totals.

Note the third row. Borrowing $10,000 more than the first example costs only $71.37 more a month — because the term is two years longer and the rate is spread over a bigger balance. That is the seduction of the longer term, and it is the same pattern that makes 72 and 84-month car loans feel affordable.

The fee that is not in the rate

An origination fee is deducted before the money reaches you, while you repay the full principal plus interest. That means the true annual cost is higher than the rate the lender quotes — and by more than most borrowers expect.

Take the $15,000 loan at 11% over three years. The payment is $491.08 a month. Now apply a fee:

Origination feeDeductedCash receivedEffective annual cost
None$0$15,00011.00%
3%$450$14,55013.12%
5%$750$14,25014.58%

Effective annual cost is the internal rate of return on the cash actually received against the payments actually made — the same method lenders use to compute APR.

A 5% fee adds 3.58 percentage points to the real cost — a third more than the 11% on the advert. Two lenders quoting the same rate can therefore be more than three points apart in what they actually charge, which is precisely the situation the APR exists to expose. Never compare personal loan offers on the rate alone; ask what percentage is deducted and compare the APR, which is required to include it.

When a personal loan is the sensible tool

When it is not

Unsecured lenders rarely ask what the money is for, which is exactly why they are a poor fit for anything ongoing. Funding a business shortfall, covering a gap between income and spending, or taking on a loan with a monthly payment that competes with rent is a sign that the problem is the cash flow, not the financing. A loan converts an existing problem into a fixed monthly obligation, and a fixed monthly obligation is harder to renegotiate than a bill you can defer.

It is also worth checking whether a secured option exists for less. If you own a home, a mortgage-based calculation will show why a home equity product can carry a much lower rate — along with the important caveat that it puts the house up as collateral.

Reading the offer documents

In the United States, a personal loan is covered by the Truth in Lending Act, so the lender must disclose the APR, the finance charge, the amount financed and the total of payments on a standard form. Three numbers on that form do most of the work:

And check the prepayment terms. Most personal loans are simple-interest with no penalty, which means an extra payment is one of the cheapest interest savings available — the calculator above will show you exactly how much.

Frequently asked questions

What interest rate should I expect on a personal loan?

It depends almost entirely on your credit profile and the lender. Well-qualified borrowers are commonly quoted single-digit to low-double-digit rates; weaker credit or a longer term pushes the rate up sharply. Personal loans are unsecured, so there is no collateral for the lender to recover if you stop paying — that risk is priced into the rate you are offered.

What is an origination fee and why does it matter?

It is a fee charged for making the loan, typically 1% to 8% of the amount, deducted from the money you receive. Because you repay the full principal plus interest while only receiving the net amount, the true annual cost is higher than the headline rate. The calculator below lets you see the payment; the guide below shows what the fee does to the effective rate.

Is a personal loan better than a credit card?

Usually, if you are carrying a balance. Credit cards commonly charge several times the APR of an unsecured personal loan, and a fixed-rate instalment loan has a defined end date. What personal loans do not have is the grace period — a credit card costs nothing if you clear the balance each month, while a loan charges interest from day one.

Does paying a personal loan off early save money?

On most personal loans, yes — they are usually simple-interest instalment loans with no prepayment penalty, so anything you pay above the scheduled instalment reduces the balance and shortens the term. Check the agreement for a prepayment penalty first, since a minority of lenders do charge one.

Will applying affect my credit score?

A single application produces a hard enquiry, which typically has a small temporary effect. Rate-shopping within a short window is usually treated as one enquiry by the major scoring models, so it is worth gathering quotes close together rather than spreading them over months.

Other calculators

  • Mortgage calculator — Monthly payment with property tax, home insurance, HOA and PMI folded in — the number that actually leaves your account, not just principal and interest.
  • Auto loan calculator — Work out the amount financed from price, down payment, trade-in and sales tax, then see what the monthly payment really costs over 48, 60 or 72 months.
  • Student loan calculator — Payment and total interest on a student loan, plus what a modest extra monthly payment does to the payoff date — the cheapest interest saving there is.
  • Amortization schedule — The full month-by-month and year-by-year breakdown of a fixed-rate loan, and how much interest an extra payment removes from the end of it.

See all calculators

Guides that go with it

  • How loan amortization works — The formula term by term, a worked month-by-month example, when principal finally overtakes interest, and why extra early payments save so much.
  • How to compare loan offers — Why the headline rate is not the comparison, the three numbers that are, and how to work out whether discount points are worth paying.
  • APR vs interest rate — What each number actually measures, what APR leaves out, and the cases where comparing APR will lead you to the wrong lender.

This calculator is educational and is not financial advice, and its output is an estimate — lenders apply their own fees, rounding rules and day-count conventions. Every figure was produced by the same calculator code and independently recomputed before publication. Spot an error? Tell us — see also our disclaimer.