Days Together Calculator

Find out exactly how long you've been with your partner. Enter your start date below.

How to Calculate Days Together

Pick the date your relationship started, whether that's your first date, the day you became official, or when you first met. Enter it above and the calculator does the rest, giving you an exact count in days, weeks, months, and years.

It also flags upcoming milestones so you can plan something special before they pass. No sign-up, no app download, just a date and instant results.

Popular Relationship Milestones

100 Days

Just over 3 months. A great excuse for a small celebration or surprise date night.

365 Days (1 Year)

Your first anniversary. Recreate your first date or exchange meaningful gifts.

500 Days

About 16 months in. An unexpected milestone that makes for a fun surprise.

1,000 Days

Nearly 3 years together. Plan something bigger for this one.

2,000 Days

About 5.5 years. You've built something lasting together.

10,000 Days

Over 27 years together. Time for a big celebration with family and friends.

Frequently Asked Questions

How do I calculate how many days we've been together?

Enter your relationship start date into the calculator above. It will instantly show your total days, weeks, months, and years together, plus upcoming milestones. You can also do it manually by subtracting your start date from today's date.

What milestones should couples celebrate?

Popular milestones include 100 days, 365 days (1 year), 500 days, 1,000 days, 2,000 days, and each yearly anniversary. There's no right or wrong answer, so celebrate whenever it feels meaningful to you both.

Does the start date count as day 1 or day 0?

Most couples count their first day together as day 1. This calculator uses that convention. There's no strict rule, so go with whatever feels right for your relationship.