$18,000 Personal Loan Calculator: Monthly Payment & Total Cost

The monthly payment and total interest on a $18,000 personal loan, across every common APR and term — plus the live calculator, preset to $18,000.

$18,000 · 12.5% APR · 60 months · no fee

Monthly payment: $404.96
Total interest: $6,298
Total of payments: $24,298
Payment over 36 months: $602.17

$18,000 personal loan — payment by APR and term

Monthly payment for a $18,000 fully-amortizing loan with no origination fee. Read down to your likely APR and across to your term. The smaller figure under each payment is the total interest paid over the life of the loan.

APR	24 mo	36 mo	48 mo	60 mo
8%	$814.09$1,538 interest	$564.05$2,306 interest	$439.43$3,093 interest	$364.98$3,899 interest
12%	$847.32$2,336 interest	$597.86$3,523 interest	$474.01$4,752 interest	$400.40$6,024 interest
16%	$881.34$3,152 interest	$632.83$4,782 interest	$510.13$6,486 interest	$437.73$8,264 interest
20%	$916.12$3,987 interest	$668.94$6,082 interest	$547.75$8,292 interest	$476.89$10,613 interest
24%	$951.68$4,840 interest	$706.19$7,423 interest	$586.83$10,168 interest	$517.82$13,069 interest
28%	$987.99$5,712 interest	$744.54$8,804 interest	$627.34$12,112 interest	$560.44$15,627 interest
32%	$1,025.05$6,601 interest	$783.98$10,223 interest	$669.21$14,122 interest	$604.67$18,280 interest
36%	$1,062.85$7,508 interest	$824.47$11,681 interest	$712.40$16,195 interest	$650.39$21,024 interest

How the payment is calculated

Each payment is the standard amortized-loan amount: the $18,000 principal, the monthly rate (APR ÷ 12), and the number of months determine a fixed payment where early payments are mostly interest and later ones mostly principal. Total interest is the sum of the interest portion across every scheduled payment. See the amortization explainer on the home page for the formula.

Getting the rate down

On $18,000, moving from 24% to 12% APR over five years saves about $6,772 in interest. That gap is mostly credit score and, to a lesser extent, shopping several lenders within a two-week window so the hard inquiries count as one. If you are consolidating card debt, model the payoff both ways with the debt payoff calculator.

Other amounts

Need a different size? Try $15,000 or $20,000, or the personal loan calculator for any amount.

Related guides

Frequently asked questions

What is the monthly payment on a $18,000 personal loan?

At 12.5% APR it is about $404.96 a month over 60 months, or $602.17 a month over 36 months. A lower APR or a longer term lowers the monthly payment; a longer term raises the total interest. The table above shows every combination.

How much interest will I pay on $18,000 over 5 years?

About $6,298 at 12.5% APR. At 24% APR the same loan costs roughly $13,069 in interest — credit score is the biggest lever on that number.

Can I get a $18,000 personal loan with bad credit?

Often yes, but expect an APR near the top of the 36% range and possibly an origination fee of 1–8%. Compare the APR (which includes the fee), not the nominal rate. If the payment looks unaffordable, a longer term or a smaller amount helps more than shopping for a slightly lower rate.

$18,000 loan over 3 years or 5 years?

Three years means a higher monthly payment ($602.17 vs $404.96 at 12.5% APR) but less interest overall. Five years is easier on the monthly budget but you pay more to borrow. Pick the shortest term whose payment you can comfortably cover every month.

Does the payment include an origination fee?

The table assumes no fee. If a lender charges one, add it to the amount borrowed: a 5% fee on $18,000 is $900, so you would run the numbers on $18,900. The main calculator below has an origination-fee field.

Can I pay a $18,000 loan off early?

Most personal loans allow early payoff with no penalty, which saves the remaining interest. Check the agreement for a prepayment clause. Extra payments go entirely to principal once the month's interest is covered.

Last reviewed: September 2026. Figures and formulas are checked against their published sources; see the site's data notes.