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Golden Birthday Calculator

Find your golden (champagne) birthday — the year you turn the age matching your birth day — plus your beddian birthday, double-digit milestones and the day of the week for each.

Date of birth

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How it works

golden birthday = birth year + day of month; beddian = birth year + its last two digits; platinum = birth year + month number

A golden (or champagne, or lucky) birthday is the one where your age matches the day of the month you were born — someone born on the 17th celebrates it at 17. Born on the 1st you had it as a baby; born on the 31st you wait until 31. The beddian birthday (named after firefighter Bobby Beddia) is when your age equals the last two digits of your birth year, and only happens once. These are all just excuses for a bigger party.

Worked example

Born 17 November 1998: golden birthday 17 November 2015 (a Tuesday), beddian birthday at 98 in 2096, platinum birthday at 11 in 2009.

Frequently asked questions

What if I was born on the 1st?

Your golden birthday was your first — some people celebrate a “double golden” at twice the day instead.

Is there a silver birthday?

Traditions vary; some use silver for age 25 and diamond for 60, mirroring anniversaries.

Related calculators

Half Birthday and Milestone Date Calculator

Find your half birthday and big day-count milestones like your 10,000th day — with the exact weekday.

Birthday Countdown Calculator

Count down to your next birthday — days, weeks, hours and sleeps to go, weekends and workdays in between, the age you’ll turn and the weekday it falls on, your half-birthday and next milestone birthday, plus a countdown list for the whole family.

Day of the Week Calculator

Find the day of the week for any date, plus its day of the year and ISO week number.

This calculator is for educational purposes. Double-check important results before acting on them.