KOREA · CULTURE
Korean Couple Anniversary Calculator
Find your Korean-style couple anniversaries and see how many days you have been together, counting the first day as day 1.
Find your anniversaries
Example: started on Mar 14, 2026
- 22 days (“two-two”) (투투): Apr 4, 2026
- 50 days (50일): May 2, 2026
- 100 days (100일): Jun 21, 2026
- 200 days (200일): Sep 29, 2026
- 300 days (300일): Jan 7, 2027
- 1st anniversary (1주년): Mar 14, 2027
How the days are counted
Day 1 is the day you started dating. Day-based anniversaries add days from there: the 100th day falls 99 days later. Yearly anniversaries fall on the same date each year.
Dates are worked out on your device. Nothing you enter is sent anywhere.
Frequently asked questions
Why do Korean couples celebrate 100 days?
Korean couples often mark their relationship in days, not just years. The 100-day mark (백일, baegil) is the best-known, followed by 200, 300 and 1,000 days.
Is the first day counted as day 1 or day 0?
In Korea the day you start dating counts as day 1, the same way a baby’s 100th day is counted from the day of birth. So the 100th day is 99 days after you started.
What is “tutu” (투투)?
The 22nd day. “Tu” sounds like “two”, so 22 is called two-two.
More tools
Sources and last updated
- Day counting follows the common Korean custom of counting the first day as day 1.
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