Age Calculator
Calculate your exact age in years, months, days, hours, and minutes from your birth date.
Age Calculation
Years & Months
Total Days
Understanding Age Calculation
Age calculation seems straightforward—subtract birth year from current year. But it's more nuanced than that. Your exact age depends on whether you've had your birthday this year, and calculating months and days requires accounting for varying month lengths.
This calculator provides your precise age broken down into multiple time units, along with fun facts about your birthday.
Exact Age
Get your precise age in years, months, and days—not just years.
Multiple Units
See your age in weeks, days, hours, and minutes too.
Countdown
Find out exactly how long until your next birthday.
Zodiac Signs
Discover your Western and Chinese zodiac signs.
How Age Is Calculated
Age calculation follows specific rules to handle the complexity of the calendar system:
Year Calculation
You turn one year older on your birthday. If today is before your birthday this year, you're one year younger than the simple year subtraction would suggest.
Month Handling
Months have different lengths (28-31 days). The calculator accounts for this when determining exact months. Born on the 31st? In months with 30 days, the month changes on the 30th.
Leap Years
Born on February 29? Your birthday is typically celebrated on February 28 (or March 1) in non-leap years. This calculator handles leap year birthdays correctly.
Time Zones
Age is calculated based on local calendar dates, not exact moments. You don't need to know your exact birth time for this calculation.
Generation Classifications
Your birth year places you in a generational cohort with distinct cultural characteristics:
| Generation | Birth Years | Also Called | Key Characteristics |
|---|---|---|---|
| Greatest Generation | 1901-1927 | G.I. Generation | Lived through WWI, Great Depression |
| Silent Generation | 1928-1945 | Traditionalists | WWII childhood, conformist values |
| Baby Boomers | 1946-1964 | Boomers | Post-war optimism, cultural revolution |
| Generation X | 1965-1980 | Gen X, Latchkey | Independent, skeptical, work-life balance |
| Millennials | 1981-1996 | Gen Y | Digital natives, value experiences |
| Generation Z | 1997-2012 | Gen Z, Zoomers | True digital natives, pragmatic |
| Generation Alpha | 2013-2025 | Gen Alpha | AI natives, highly connected |
Western Zodiac Signs
Your zodiac sign is determined by your birth date. Here are all 12 signs:
Aries (Mar 21 - Apr 19)
Fire sign. Energetic, courageous, confident, and enthusiastic.
Taurus (Apr 20 - May 20)
Earth sign. Reliable, patient, practical, devoted, and stubborn.
Gemini (May 21 - Jun 20)
Air sign. Gentle, curious, adaptable, and quick-witted.
Cancer (Jun 21 - Jul 22)
Water sign. Tenacious, imaginative, loyal, and emotional.
Leo (Jul 23 - Aug 22)
Fire sign. Creative, passionate, generous, and dramatic.
Virgo (Aug 23 - Sep 22)
Earth sign. Loyal, analytical, kind, and hardworking.
Libra (Sep 23 - Oct 22)
Air sign. Cooperative, diplomatic, fair-minded, and social.
Scorpio (Oct 23 - Nov 21)
Water sign. Resourceful, brave, passionate, and stubborn.
Sagittarius (Nov 22 - Dec 21)
Fire sign. Generous, idealistic, great sense of humor.
Capricorn (Dec 22 - Jan 19)
Earth sign. Responsible, disciplined, self-control.
Aquarius (Jan 20 - Feb 18)
Air sign. Progressive, original, independent, humanitarian.
Pisces (Feb 19 - Mar 20)
Water sign. Compassionate, artistic, intuitive, gentle.
Chinese Zodiac
The Chinese zodiac follows a 12-year cycle, with each year represented by an animal. Your birth year determines your sign:
Rat
Years: 2020, 2008, 1996, 1984, 1972... Quick-witted, resourceful, versatile, kind.
Ox
Years: 2021, 2009, 1997, 1985, 1973... Diligent, dependable, strong, determined.
Tiger
Years: 2022, 2010, 1998, 1986, 1974... Brave, confident, competitive.
Rabbit
Years: 2023, 2011, 1999, 1987, 1975... Quiet, elegant, kind, responsible.
Dragon
Years: 2024, 2012, 2000, 1988, 1976... Confident, intelligent, enthusiastic.
Snake
Years: 2025, 2013, 2001, 1989, 1977... Enigmatic, intelligent, wise.
Horse
Years: 2026, 2014, 2002, 1990, 1978... Animated, active, energetic.
Goat
Years: 2027, 2015, 2003, 1991, 1979... Calm, gentle, sympathetic.
Monkey
Years: 2028, 2016, 2004, 1992, 1980... Sharp, smart, curious.
Rooster
Years: 2029, 2017, 2005, 1993, 1981... Observant, hardworking, courageous.
Dog
Years: 2030, 2018, 2006, 1994, 1982... Loyal, honest, amiable, kind.
Pig
Years: 2031, 2019, 2007, 1995, 1983... Compassionate, generous, diligent.
Birthday Fun Facts
Your birthday has some interesting statistics and trivia:
Most Common Birthday
September 9 is the most common birthday in the US, with most September birthdays resulting from holiday season conceptions. February 29 is the rarest.
Birthday Paradox
In a group of just 23 people, there's a 50% chance two share a birthday. With 70 people, probability jumps to 99.9%!
Golden Birthday
Your 'golden birthday' is when you turn the age of your birth date (e.g., turning 25 on the 25th). Also called your 'lucky birthday.'
Champagne Birthday
Your 'champagne birthday' is when your age matches the last two digits of your birth year. If born in 1995, it's when you turn 95.
Frequently Asked Questions
How is exact age calculated?
Exact age is calculated by counting complete years, months, and days from your birth date to the target date. The calculator accounts for varying month lengths and leap years to give you precise results.
What if I was born on February 29?
People born on February 29 (leap day) technically only have a birthday every four years. In non-leap years, most celebrate on February 28 or March 1. This calculator handles leap year birthdays correctly.
Why does my age in months seem off?
Month lengths vary (28-31 days), so months aren't uniform time periods. The calculator counts complete months from your birth date, which may not align with your intuitive count if you're thinking of months as exactly 30 days.
How accurate are the hours and minutes?
Hours and minutes are calculated from midnight on your birthday to midnight on the target date. If you want your exact age to the minute, you'd need to account for your exact birth time and time zones.
What generation am I?
Generational boundaries are somewhat arbitrary and vary by source. This calculator uses commonly accepted ranges: Baby Boomers (1946-1964), Gen X (1965-1980), Millennials (1981-1996), Gen Z (1997-2012), and Gen Alpha (2013+).
Are zodiac signs accurate?
Western zodiac signs are based on sun position at birth and are used in astrology. Chinese zodiac is based on birth year. These are cultural/entertainment systems, not scientifically predictive.
Can I calculate someone else's age?
Yes! Simply enter any birth date to calculate age. You can also change the 'Calculate Age On' date to find how old someone was (or will be) on any specific date.
How many weeks old am I?
Your age in weeks is simply the total number of days divided by 7. This calculator shows both complete weeks and the breakdown in other time units.
Pro Tips
- Bookmark this calculator for quick access in the future
- Use the share button to send your results to others
- Try different scenarios to compare outcomes
- Check out our related calculators for more insights
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