Chinese Gender Predictor takes two Gregorian dates: the mother's birthday and an estimated conception date. It converts them to lunar age and conception month, highlights the matching cell in a 336-cell folk chart, and shows the date conversions and lookup steps. If the exact conception day is unknown, a month-only mode checks the full date range and shows when different days lead to different chart results. The full chart, year-by-year lunar calendar, calculation method and guides are open to browse.
The website is free, with no account or paid tier, and offers English and Chinese pages. Its privacy policy says the entered dates are calculated in the browser and are not sent to the site or stored in the URL. The chart is a traditional amusement, not a way to determine fetal sex. The site's accuracy guide cites a population study that found the lunar-chart method performed no better than chance.
