APR Calculator
True APR once fees and closing costs are included
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
True APR (%)—
Monthly payment—
Total cost of credit—
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- $20,000 loan, $500 fees, 5% stated rate, 60 months → Monthly $377.42; true APR 6.048%; total cost of credit $2,645.48
- $250k loan, 6% rate, $6k fees, 360 months → APR ≈ 6.228% (monthly $1,498.88)
Formula
APR solves net proceeds = payment × (1 − (1+r)−n) / r, where net proceeds = loan − fees. Because fees reduce what you actually receive, true APR is always above the stated rate when fees exist. This is the number US lenders must disclose under the Truth in Lending Act.
About APR Calculator
True APR once fees and closing costs are included. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
Is this tool free to use? +
Yes, it is completely free with no registration or download required.
Is my data private? +
Yes. Everything is processed locally in your browser. Nothing is uploaded or stored on our servers.
Does it work on mobile? +
Yes, it works on any device — phone, tablet, or desktop.