Calculator inputs
Birth dates, conception dates, due dates and results are processed locally. We do not transmit them to a calculation service, include them in URLs, or store them in a database. There is no account or calculator-history feature.
Your browser may retain form values through its own history or autofill behavior. “Start over” clears the page’s inputs. We do not control data retained by your browser or device.
Sharing and printing
“Copy result” copies the boy/girl guess, an entertainment notice and the website address. It does not include dates or lunar age. You decide where to paste it. Printing uses your browser; a selected chart cell may remain highlighted on a printed chart.
Printable downloads
The calendar and game PDFs can be downloaded without an account or email address. The files are blank references and activities; we do not fill them with your calculator dates. Any details you write on a printed game card stay on that card.
Hosting and technical requests
Loading any website sends network information, including your IP address and requested page, to its host. Our hosting provider is Vercel. See Vercel’s privacy policy for hosting-related information.
Fonts, images and code are served from this website. This version has no advertising scripts, analytics scripts, third-party font requests, tracking cookies or embedded social widgets.
External links
Research and reference links lead to services with their own policies. Your calculator dates are not attached to those links.
Last updated October 9, 2026.