APY Calculator
Convert nominal rate to annual percentage yield with any compounding frequency
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
Converted rate (%)—
Difference (basis points)—
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
- Nominal 5%, compounded monthly (n=12) → APY ≈ 5.116%
- 6% APR, compounded 4×/year → APY ≈ 6.136% (0.136 pts above APR)
Formula
APY = (1 + r/n)n − 1, where r is the nominal annual rate and n is the number of compounding periods per year. APY captures the effect of intra-year compounding so it can be compared directly across products.
About APY Calculator
Convert nominal rate to annual percentage yield with any compounding frequency. 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.