How long have we been together?
Counting a relationship's length by hand is fiddly because months have different lengths and leap years get in the way. Entering your start date gives the exact years, months and days, plus the running totals in days and weeks — the numbers couples like to mark.
Anniversaries and milestones
Beyond the yearly anniversary, many couples celebrate day-count milestones — 100 days, 1,000 days, 10,000 days. Seeing the total in days makes those easy to spot and plan a surprise around.
Just for the memories
This is a keepsake tool, not a formal record. Use it to fill in a card, plan a celebration, or settle a friendly debate about exactly when you started dating.
Frequently asked questions
How is the duration calculated?
From your start date to today, as exact years, months and days, plus totals in days and weeks.
Can I use it for friendships or anniversaries?
Yes — any start date works, whether it's a relationship, friendship, or a job you want to count from.
What does a relationship calculator measure?
Usually the length of a relationship — the time from a start date to today, shown in years, months and days — or a playful compatibility score.
How do I calculate how long we've been together?
Subtract the start date from today's date. The tool breaks the span into years, months and days, and often the total days too.
Are compatibility scores meaningful?
No — any score is just for fun. Real compatibility depends on communication and values, not a number from a name or date.