Enter baby's birth date — this tool computes the Korean 100-day (Baegil) celebration date and D-day.
Disclaimer: This tool is a reference based on common Korean tradition (counting the birth day as day 1). Family, regional, and religious conventions vary — consult family elders for the final choice. No input is stored.
Baegil (백일) celebrates the 100th day after a baby's birth in Korea. Historically it marked safely surviving the highest-risk early weeks. Today it is still a major family milestone, with photo sessions and small celebrations.
Korean tradition counts the day of birth as day 1, so Baegil falls on 'birth date + 99 days'. This calculator follows that convention.
1. Enter baby's solar birth date (YYYY-MM-DD).
2. Click Calculate. Baegil date, weekday, and D-day appear.
3. 50-day, 200-day, and first birthday dates are also shown.
Korean tradition counts the birth day as day 1. Baegil = birth + 99 days. Some countries/hospitals count from day 0, which shifts Baegil by one day.
Many families move it to a nearby weekend for convenience. Baby's condition and family schedule matter most.
Many studios open bookings 2–4 weeks ahead. Advance booking is recommended.
Traditional rice cakes (Baekseolgi, Susupat-tteok), gold rings, or baby items. Customs vary widely by family and region.
Use the actual birth date — Korean custom always counts from when the baby was born.
Enter a baby's birth date to instantly see the Korean 100-day celebration date, weekday, and a live D-day countdown — ideal for new parents planning Baegil photos or family gatherings.
Results include extra milestones (50 days, 200 days, first birthday) helpful for booking photo studios, restaurants, or family travel ahead of time.
Free, no sign-up, no install. All calculation happens in your browser.