Loan Comparison Calculator

Put two loan offers side by side. Compare monthly payment, total interest and total cost including fees so you can see which one is genuinely cheaper.

Ad slot (configure NEXT_PUBLIC_ADSENSE_CLIENT)

Your numbers

Ad slot (configure NEXT_PUBLIC_ADSENSE_CLIENT)
Cheaper overall
Offer B
Saves $2,592 in interest and fees
Breakdown
Offer A cost$6,503
Offer B cost$3,911
Offer A — monthly payment
$525
Offer B — monthly payment
$782
Offer A — total cost of credit
$6,503
Offer B — total cost of credit
$3,911
Offer A — total repaid
$31,503
Offer B — total repaid
$28,911
Ad slot (configure NEXT_PUBLIC_ADSENSE_CLIENT)

Comparing offers properly

Lenders rarely present offers in a comparable format. One quotes a low rate with a large origination fee; another quotes a higher rate with no fee but a longer term. The only fair comparison is total cost of credit — interest plus every fee — over the life of each loan, alongside the payment you have to live with each month.

Rate versus term

Rate and term pull in opposite directions. A lower rate over a longer term can easily cost more in total than a higher rate over a shorter one. On $25,000, five years at 9.5% costs about $6,400 in interest; three years at 7.9% costs about $3,150. The shorter loan wins by a wide margin even though it carries a payment roughly $250 higher.

Fees that belong in the comparison

  • Origination or administration fees, whether deducted up front or added to the balance.
  • Application, appraisal or documentation fees.
  • Mandatory insurance products bundled into the loan.
  • Prepayment penalties, if you have any realistic chance of paying early.

Things the numbers do not capture

Prepayment flexibility, whether the rate is fixed or variable, hardship and deferment options, whether the servicer is likely to sell the loan, and how the payment interacts with the rest of your budget. A loan that is $20 cheaper in total but leaves no room for an unexpected expense is not the better loan.

A simple decision rule

Pick the shortest term whose payment you can comfortably sustain in a bad month — not an average month. Then, among loans at that term, take the lowest APR. That sequence resolves most comparisons without agonising.

Ad slot (configure NEXT_PUBLIC_ADSENSE_CLIENT)

Frequently asked questions

Should I choose the lower payment or the lower total cost?

Total cost is the honest measure, but the lower payment can be the right choice if cash flow is tight and the difference is small. Never choose a longer term purely because the payment looks comfortable.

Why compare APR instead of interest rate?

APR folds origination fees and certain closing costs into a single annualised figure, so two offers with different fee structures become comparable. US lenders are required to disclose it.

Embed this calculator on your site

Free to use on any website, personal or commercial. No attribution required beyond the link in the snippet, and no registration. Copy the code below.

<iframe src="https://www.payoffdesk.com/embed/loan-comparison-calculator" width="100%" height="720" style="border:1px solid #e2e8f0;border-radius:16px;max-width:760px" title="Loan Comparison Calculator" loading="lazy"></iframe>
<p style="font-size:12px;color:#64748b">Calculator by <a href="https://www.payoffdesk.com/loan-comparison-calculator" target="_blank" rel="noopener">PayoffDesk</a></p>

The embed is a static page — it loads no cookies and no tracking scripts, and all calculations run in the visitor’s browser.

Related calculators

Disclaimer: results are estimates for general information only and do not constitute financial, tax or legal advice. Actual figures depend on your lender, credit profile and jurisdiction. Verify any number with a qualified professional before acting on it.