Age Calculator
Calculate your exact age down to the day, plus find your zodiac sign and how long until your next birthday.
Age
35 years, 10 months, 0 days
Total Days
13,089
Total Months
429
Next Birthday
61 days
Zodiac Sign
Capricorn
Generation
Millennials
Note: Age calculations are based on calendar dates and may not account for leap seconds or other time adjustments. Future age calculations are estimates based on the current calendar system.
Features
- Calculate exact age in years, months, and days
- Find your zodiac sign based on birth date
- Determine your generation (Baby Boomer, Gen X, Millennial, etc.)
- Calculate age at any specific date
- Countdown to your next birthday
Common Uses
- Planning birthday celebrations and events
- Age verification for legal purposes
- Understanding generational differences
- Astrological and zodiac sign analysis
How Age Calculation Works
You might think calculating age is just subtracting one year from another, but it's actually trickier than that. The calculator has to account for leap years (that extra day in February every four years), different month lengths (February has 28 or 29 days, while July has 31), and how dates roll over from one month or year to the next. It also uses UTC time to keep things consistent no matter where you are.
Beyond just telling you your age, the calculator figures out your zodiac sign based on where the sun was when you were born, determines which generation you belong to (like Millennial or Gen Z), and counts down the days until your next birthday. These ranges for generations are pretty standard—Baby Boomers are 1946-1964, Gen X is 1965-1980, Millennials are 1981-1996, and so on.
Frequently Asked Questions
How accurate is this?
Pretty accurate for everyday use. It handles leap years and different month lengths correctly. The only thing it doesn't account for is leap seconds (which happen occasionally) and time zone shifts during the day, but those don't really matter for calculating your age.
How does it figure out my zodiac sign?
Your zodiac sign is based on where the sun was positioned on your birth date. The calculator uses the tropical zodiac system, which splits the year into 12 equal sections starting from the spring equinox. So if you were born between March 21 and April 19, you're an Aries, and so on.
What makes someone a Millennial vs. Gen Z?
Generations are grouped by birth years and the cultural experiences people share. The calculator uses the most common definitions: Baby Boomers (1946-1964), Gen X (1965-1980), Millennials (1981-1996), Gen Z (1997-2012), and Gen Alpha (2013-present). There's some debate about the exact cutoff years, but these are what most researchers use.
Can I see how old I'll be on a future date?
Yes, just use the "Calculate age at specific date" option. This is handy if you need to know how old you'll be for something with age requirements, or if you're curious about milestone birthdays coming up.
How does the birthday countdown work?
It looks for the next time your birth month and day will come around. If your birthday hasn't happened yet this year, it shows how many days until then. If it already passed, it shows how many days until next year.