100 Days Calculator
Count your days together, the Korean way.
Why Korean couples count days
In Korea, a relationship has a day count, not just an anniversary. The day you start dating is day 1 — so day 100 lands 99 days later, not 100.
Day 100 (baegil) is the first big one: dinner somewhere nice, a small gift, sometimes the first couple rings. The idea echoes baegil for babies, the feast a family holds when a newborn reaches 100 days.
After that, every hundred gets a nod: 200, 300, and so on. 365 days becomes the first anniversary (il-junyeon), counted in years from then on.
Day 1000 is the next big moment — almost two years and nine months in. Couple apps on Korean phones show the running count on the home screen, so nobody forgets.
How we count
Day 1 is the start date itself. Hundred-day marks run to 1,000, then every 1,000 after. Anniversaries fall on the same month and day; a February 29 start celebrates on February 28 in non-leap years.