Find the true Annual Percentage Rate of a loan when fees are included. The APR gives you a more accurate picture of borrowing costs than the interest rate alone, making it easier to compare loan offers.
The interest rate on a loan is the number the lender quotes most prominently. The APR — Annual Percentage Rate — is the number federal law requires them to disclose, because it includes the fees that the interest rate alone leaves out. Comparing two loan offers by interest rate alone is like comparing two cars by sticker price while ignoring the dealer fees. APR exists to make the comparison apples-to-apples.
The calculation works by treating upfront fees as if they were extra interest paid over the life of the loan. A $5,000 origination fee on a $200,000 mortgage doesn't change your monthly payment, but it means you're really only receiving $195,000 of usable funds while paying back a $200,000 schedule. The APR is the interest rate that would produce the same monthly payments if you actually received $195,000 — always higher than the stated rate.
This calculator handles the math: stated rate + loan term + fees → effective APR. The result is the figure your loan estimate will show in big print, and the figure to use when stack-ranking offers from different lenders. Just remember the assumption: APR assumes you hold the loan for the full term. If you sell, refinance, or pay off early, the actual cost of those upfront fees on a per-year basis is higher than APR suggests.
Loan: $300,000 at 6.5% over 30 years Upfront fees: $6,000 (origination + processing) Monthly payment at 6.5%: $1,896 Net proceeds: $294,000 APR: ≈ 6.72% The $6,000 in fees adds about 22 basis points to the effective rate when amortized over 30 years.
Same $300,000 loan, but pay 2 discount points ($6,000) to lower the rate from 7.0% to 6.5% Without points: 7.0%, no fees → APR 7.00%, monthly $1,996 With points: 6.5%, $6,000 in points → APR 6.72%, monthly $1,896 Monthly savings: $100. Break-even: $6,000 ÷ $100 = 60 months (5 years). The APR comparison favors the points-paid loan, but only if you actually hold the loan past the break-even point.
Personal loan: $10,000 at 11% over 5 years Origination fee: $500 Monthly payment at 11%: $217 Net proceeds: $9,500 APR: ≈ 12.94% The same $500 fee that adds 22 bps over 30 years adds 194 bps over 5 years. Fees matter most on short-term loans.
Use this calculator to compare loan offers from different lenders or different products from the same lender — it is the cleanest way to convert "interest rate plus fees" into a single comparable number. The Truth in Lending Act (Regulation Z) requires lenders to disclose APR on the Loan Estimate, and APR is also why a lender quoting a 6.5% rate with $8,000 of fees may be more expensive than a different lender quoting 6.75% with $1,000 of fees.
Pair it with the mortgage-payment calculator to see the monthly cash impact, and with the loan comparison or personal loan calculator when stack-ranking offers across products.
It is less useful when comparing two loans of different terms (a 15-year vs. 30-year) or different types (fixed vs. adjustable), because APR assumes you hold to maturity at the disclosed terms. For loans you intend to pay off early, compute an effective rate over your actual expected holding period — APR understates the cost of upfront fees in those scenarios.
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Effective APR
6.745%
Stated Interest Rate
6.500%
Monthly Payment
$1,264
Total Cost (Interest + Fees)
$260,089