What is APR on a loan?

APR (Annual Percentage Rate) is the true yearly cost of a loan expressed as a percentage. Unlike the stated interest rate, APR includes all mandatory fees — origination fees, processing charges, and monthly service fees — giving you the real cost of borrowing.

How is loan APR different from interest rate?

The interest rate is the base cost of borrowing the principal. APR adds all fees and charges spread over the loan term. A loan advertised at 8% interest with a 3% origination fee on a $25,000 loan might have an APR of 9.2% — meaning you're actually paying 9.2% annually when fees are included.

Why do personal loans have higher APR than mortgages?

Personal loans are unsecured (no collateral), so lenders charge higher rates to compensate for risk. They also tend to have shorter terms, meaning fees are amortized over fewer months — which pushes APR higher relative to the stated rate.

Does APR include monthly fees?

Yes, under Federal Reserve Regulation Z, recurring monthly fees that are mandatory must be included in the APR calculation. This calculator lets you input monthly fees separately to see their impact on effective APR.

What is a good APR for a personal loan in 2026?

As of 2026, personal loan APRs range from 6-8% for excellent credit (750+) to 20-36% for fair/poor credit. Auto loans average 5-7% for new cars. Always compare the APR (not just the rate) across multiple lenders to find the best deal.

Loan APR Calculator

Uncover the true annual percentage rate of any personal, auto, or business loan by factoring in origination fees, monthly charges, and all hidden costs. Compare loan offers accurately using APR rather than advertised interest rates.

Loan Amount ($)

Stated Interest Rate (%)

Loan Term (months)

Origination Fee Type

Origination Fee Percentage of loan amount

Other Upfront Fees ($) Processing, documentation, etc.

Monthly Fees ($) Recurring monthly service charges

Effective APR

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Stated Rate

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Monthly Payment

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Total Interest

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Hidden Cost (APR vs Rate)

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Loan Amount	—
Origination Fee	—
Other Upfront Fees	—
Total Monthly Fees (over term)	—
Total Fees Paid	—
Net Loan Proceeds	—
Total Cost of Loan	—

How Loan APR Calculation Works

The Annual Percentage Rate (APR) for any loan is determined by finding the interest rate that equates the present value of all payments (including monthly fees) to the net amount you actually receive after upfront fees are deducted. This calculator uses the Newton-Raphson iterative method as specified by Federal Reserve Regulation Z (Truth in Lending). The result reveals how much more expensive a loan truly is compared to its advertised rate. Last updated: June 2026.

Loan APR for Personal, Auto, and Business Loans

Different loan types have different fee structures that impact APR. Personal loans typically charge 1-8% origination fees deducted upfront from proceeds. Auto loans may have dealer markup fees and documentation charges. Business loans can include packaging fees, SBA guarantee fees (for SBA loans), and monthly maintenance charges. In all cases, the APR provides an apples-to-apples comparison that accounts for these varying fee structures — letting you compare a 7% loan with 5% origination fee against a 9% loan with no fees.

Why Advertised Rates Are Misleading

Lenders advertise the nominal interest rate because it looks lower. A loan marketed at "8.5% interest" with a 3% origination fee on a $25,000 loan means you receive only $24,250 but repay based on $25,000. The effective APR works out to approximately 9.7% — over a full percentage point higher. For borrowers comparing multiple offers, this hidden cost difference can mean hundreds or thousands of dollars over the loan term. Federal law requires APR disclosure, but many borrowers still focus on the headline rate.

Tips for Comparing Loan Offers by APR

Always compare loans with the same term length — a 36-month APR cannot be fairly compared to a 60-month APR because fees are amortized differently. Request the official Loan Estimate or Truth in Lending disclosure from each lender. Watch for prepayment penalties (not included in APR) that could add cost if you pay off early. Consider whether a higher-rate no-fee loan beats a lower-rate high-fee loan based on how long you plan to keep the loan. For loans under 24 months, upfront fees have a disproportionate impact on APR.

Loan APR Calculator: Worked Example for a $25,000 Personal Loan

Plug in a real comparison: $25,000 loan, 48 months, advertised 8.5% rate, 3% origination fee ($750 deducted upfront), $5/month service fee. Net proceeds = $24,250. Monthly payment for the $25,000 principal at 8.5% = $616.13, plus $5 fee = $621.13. The loan APR calculator solves for the rate that equates $621.13 monthly payments to the $24,250 you actually received — answer is approximately 10.41% APR. The 1.91 percentage-point gap versus the advertised rate is the true cost of fees. Per the CFPB definition (2026), this APR is the only number that lets you fairly compare offers from different lenders.

APR vs APY — Why the Loan APR Calculator Doesn't Compound

APR (Annual Percentage Rate) and APY (Annual Percentage Yield) often get confused, but they are computed differently. APR is the simple yearly rate including fees — it does NOT compound monthly payments back into principal, which is why this loan APR calculator reports a number lower than what you would get from compounding the monthly periodic rate. APY (used for savings, CDs, and credit-card balances you carry) compounds, so a 10.41% APR on a credit-card balance equals roughly 10.92% APY. For closed-end installment loans (personal, auto, student), Federal Reserve Regulation Z disclosures require APR — not APY — because each monthly payment reduces principal, so compounding does not apply the way it does for revolving balances.

Average Personal Loan APR by Credit Score (2026)

Use this 2026 reference band to sanity-check whether the calculator's APR is competitive for your credit tier. Rates compiled from Federal Reserve G.19 Consumer Credit data and major-lender disclosures (Discover, SoFi, LightStream, Upgrade) for unsecured 36-60 month personal loans:

Excellent (720–850): 7.50% – 11.99% APR
Good (690–719): 11.50% – 17.50% APR
Fair (630–689): 17.50% – 24.99% APR
Poor (300–629): 25.00% – 35.99% APR (often the legal state cap)

If the calculator's effective APR is more than 3 points above your tier's midpoint, the lender is loading hidden fees — shop at least three more offers before signing. Updated 2026-07-03.

Loan APR Calculator: Comparing Top 2026 Lenders Side-by-Side

Use the loan APR calculator to run each lender's published rate + fee combo. Below are sample 2026 APRs for a $25,000 personal loan, 48-month term, borrower with 720+ credit — pulled from lender disclosures and cross-checked against the CFPB Prepaid Consumer database:

SoFi: 8.99% rate, 0% origination = 8.99% APR (winner if you qualify)
LightStream: 8.49% rate, 0% origination = 8.49% APR (excellent credit only)
Marcus by Goldman Sachs: 9.99% rate, 0% origination = 9.99% APR
Discover Personal Loans: 8.99% rate, 0% origination = 8.99% APR
Upgrade: 9.99% rate, 3.99% origination = 12.06% effective APR
LendingClub: 10.24% rate, 3.00% origination = 12.03% effective APR
Prosper: 10.90% rate, 4.99% origination = 13.85% effective APR

Notice how Upgrade's 9.99% "rate" is actually 12.06% APR — over 300 basis points hidden in origination fees. This is why the loan APR calculator matters more than shopping headline rates. Always request Loan Estimate documents from at least three lenders before signing; Federal Reserve Survey of Consumer Finances data shows borrowers who compare three or more offers save an average of 1.8 percentage points on APR.

Prepayment Penalties and Effective APR on Early Payoff

The APR your loan APR calculator returns assumes you make every scheduled payment through the full term. Pay it off early and the effective APR can jump — sometimes dramatically — because most origination fees are non-refundable. Per the CFPB prepayment-penalty rules (2026), prepayment penalties are prohibited on most personal loans but still permitted on some auto loans, mortgages, and business loans. Example: a 48-month loan with $750 origination amortizes at ~$15.62/month; pay it off in month 12 and you effectively paid $750 for 12 months of financing — an implicit 8% surcharge that pushes your true APR from 10.4% to closer to 18%. Federal law under Regulation Z requires lenders to disclose whether prepayment costs anything; before signing any auto or business loan, request a written statement of the prepayment penalty (typically 1-5% of remaining balance or 3-6 months of interest, whichever the lender chose in your contract).