This APR calculator finds a loan’s true annual percentage rate — the rate that includes upfront fees, not just the interest rate on the quote sheet — by solving for the rate that makes your payments worth exactly what you actually received.
US convention: APR is the monthly true rate × 12 (nominal). Because you repay on the full loan amount but receive the amount minus fees, fees always push APR above the stated rate — the shorter the term, the harder they push.
Why APR Exists
A loan’s interest rate prices the balance; its APR prices the deal. If you borrow $10,000 but $250 vanishes into origination fees, you received $9,750 of usable money while paying interest as if you had the full ten — the APR is the single rate that honestly describes that exchange, which is why US law (Truth in Lending) requires disclosing it. The math solves for the monthly rate whose discounted payments equal the amount received, then multiplies by 12. Compare raw payments on our Personal Loan Calculator. Part of our Finance Calculators collection.
Worked Example (Verified)
$10,000 at a stated 8% for 36 months, with $250 of upfront fees:
- Payment (on the full $10,000): $313.36
- Amount actually received: $9,750
- True APR: 9.73% — the fees add 1.73 points to the real rate
- Same fee on a 12-month loan: the APR drag roughly triples (fees amortize over fewer payments) — short loans with fat fees are the classic APR ambush
Using APR to Compare Offers Honestly
- Same term, compare APRs — the lower APR is the cheaper loan, full stop. Different terms break the comparison (a longer loan can show a lower APR yet cost more overall).
- Mortgage APRs fold in points, origination and some closing costs — but not all (appraisals, title insurance vary by disclosure), so treat near-ties as ties and compare cash-to-close too.
- Adjustable-rate APRs are computed on assumptions about future index rates — the disclosure is a scenario, not a forecast.
- Credit-card APR has no fees folded in and no term — a different animal entirely (and usually the most expensive money in the building).
Related Tools
- Personal Loan Calculator — payments and interest
- LTV Calculator — the mortgage companion ratio
- Finance Calculators — the full collection
Frequently Asked Questions
What is APR in simple terms?
The yearly cost of borrowing expressed as one rate, interest plus mandatory upfront fees included. If a loan’s APR exceeds its interest rate, fees are the difference.
How is APR calculated?
Find the monthly payment from the stated rate, then solve for the rate that makes the present value of those payments equal the amount you actually receive (loan minus fees). APR = that monthly rate × 12. This calculator runs that solve numerically.
Why is my mortgage APR higher than the rate?
Points, origination charges, mortgage insurance and various closing costs are folded into the APR. On the example personal loan, a $250 fee on $10,000/36 months lifts 8.00% to a 9.73% APR.
Is a lower APR always a better loan?
At the same term and amount, yes. Across different terms, also compare total interest — and remember a prepayment plan changes everything: fees are sunk at signing, while interest accrues only as long as you hold the loan, so fee-heavy loans punish early payoff.
Do all fees count in APR?
US rules count finance charges broadly (origination, points, broker fees, mortgage insurance) but exclude some third-party costs (title, appraisal in certain cases). The calculator takes whatever fees you enter — when in doubt, include them and read your Loan Estimate’s official figure.
Is this APR calculator free?
Yes — free, instant, no sign-up.