Monthsary Calculator — How Many Months Together?

Count exactly how many months and days you've been together, and see the date of your next monthsary. Free, no sign-up.

Loved this? Turn it into a gift page they'll never forget.Create one — $2.99

What is a monthsary?

A monthsary — a blend of “month” and “anniversary” — is a monthly anniversary. Couples celebrate it on the same calendar day each month they got together: if your first day was the 6th, every 6th is your monthsary. Popularized in the Philippines and loved across Southeast Asia and Korea, it's a sweet way to celebrate love without waiting a whole year.

How to calculate your monthsary

Take the day of the month you became a couple — that's your monthsary date forever. Started on June 15? Your monthsaries fall on July 15, August 15, and so on. Because months vary in length, the gap between two monthsaries is 28–31 days, not a flat 30. This calculator does the running total automatically and shows the date of your next one.

Why couples celebrate monthsaries

Monthsaries matter most in the early, exciting stage of a relationship, when every month feels like a milestone. They're a sweet excuse to say “I still choose you” on a regular schedule — and a favorite of long-distance couples who count every day together.

Sweet monthsary message ideas

Not sure what to say? A great monthsary message is specific and sincere. A few to adapt:

  • Happy monthsary, my love — another month of us, and my favorite one yet.
  • Another month today, and distance hasn't dimmed a thing. I choose you all over again.
  • Happy monthsary to my best friend and favorite person. Here's to a hundred more.

Monthsary — frequently asked questions

What is a monthsary?

A monthsary (a blend of “month” and “anniversary”) is a monthly anniversary — couples celebrate it on the same calendar day each month they got together. If your first day was the 12th, every 12th is your monthsary. It is especially popular in the Philippines and across Southeast Asia and Korea.

How do I calculate my monthsary?

Take the day of the month you became a couple — that is your monthsary date forever. Started on June 15? Your monthsaries fall on July 15, August 15, and so on. Because months differ in length, the gap between monthsaries is 28–31 days. This calculator does the running total automatically.

When is my next monthsary?

Your next monthsary is the next time your start day-of-month comes around. Enter your start date above and the calculator shows the exact date and how many days are left.

Is the monthsary calculator free?

Yes, 100% free with no sign-up. Enter your start date and instantly see how many months and days you have been together, plus the date of your next monthsary.

What is a good monthsary gift?

A personalized MiMomento gift page ($2.99) is a perfect monthsary gift: a live time-together counter, your favorite photos, and a sweet message in one shareable link. Because it is quick and affordable, many couples make a new one every month.

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