📅 Relationship Dates & Milestones

6 calculators in this category.

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Count how long you have been together in years, months, days and hours, find your 100-day and 1,000-day milestones, see your next anniversary with traditional and modern gifts, check your age gap and plan a long-distance relationship across time zones.

Relationship Duration

How long have you been together? Your relationship length in years, months and days, plus total months, weeks, days, hours, full moons and your next anniversary.

Count how many days you've been together and see your upcoming day milestones — 100 days, 500 days, 1,000 days and more — with dates and countdowns.

Find your next anniversary, the countdown, and the traditional and modern gift, flower and gemstone for it — plus the next five anniversaries.

Find the exact age difference between two people in years, months and days, how common it is, and whether it passes the “half your age plus seven” rule.

For long-distance couples: the distance between your cities, time difference, shared waking hours, best time to call, flying time, visit budget and countdown.

See your relationship timeline: milestones you've reached and what's next — first “I love you”, meeting the family, moving in, engagement — with typical timings.