Age Calculator

Enter your birth date to see your exact age with live updates, zodiac signs, birthstone, generation, and fascinating statistics about your life.

Select your birth date to see results
Include time for more precise calculations
Your Age

How to Use the Age Calculator

This calculator provides your exact age with live updates every second, plus fascinating insights about your life.

  1. Enter your birth date using the date picker. The calculator will instantly show your age.
  2. Add birth time (optional) for precise calculations down to the second.
  3. View live updates — your age in seconds, minutes, and hours updates automatically.
  4. Explore your profile — scroll down to see your zodiac signs, birthstone, generation, and more.

What You'll Discover

The age calculator shows you:

  • Exact age in years, months, and days with live ticking seconds
  • Total time alive broken down into days, hours, minutes, and seconds
  • Fun statistics like estimated heartbeats, breaths taken, and hours slept
  • Western zodiac sign (Aries, Taurus, Gemini, etc.) with date ranges
  • Chinese zodiac animal based on your birth year
  • Birthstone for your birth month with color and meaning
  • Generation (Gen Z, Millennial, Gen X, Boomer, etc.)
  • Life progress bar showing percentage lived (assuming 80-year lifespan)

Age Calculation Facts

Calculating age is more complex than it seems. A person born on February 29 (Leap Day) only has a "real" birthday every four years, though they still age normally. Different cultures calculate age differently — in some East Asian countries, babies are considered one year old at birth, and everyone gains a year on New Year's Day rather than their birthday.

The average human heart beats about 100,000 times per day, which means by age 30, your heart has beaten over one billion times. Adults breathe roughly 20,000 times per day. These numbers vary based on activity level, health, and fitness.

The concept of zodiac signs dates back thousands of years. Western astrology divides the year into twelve signs based on the sun's position, while Chinese astrology uses a twelve-year cycle with animals. Whether you believe in astrology or not, learning your signs is a fun cultural tradition.

Frequently Asked Questions

How is my exact age calculated?
The calculator subtracts your birth date from the current date and time. It accounts for leap years, varying month lengths, and daylight saving time to give you the most accurate age possible.
Why does my age update every second?
We use JavaScript's setInterval function to recalculate your age every second, so you can watch your life tick by in real time. Your age in hours, minutes, and seconds continuously increases.
What if I was born on a leap day (February 29)?
The calculator handles leap day births correctly. Your age still increases by one year every 365 or 366 days. You only have an actual birthday on leap years, but your age is calculated normally.
How accurate are the heartbeat and breath estimates?
These are statistical estimates based on average human physiology. The calculator assumes 100,000 heartbeats per day and 20,000 breaths per day. Your actual numbers vary based on age, fitness, and activity level.
How is my generation determined?
Generations are determined by birth year ranges: Gen Alpha (2013+), Gen Z (1997-2012), Millennials (1981-1996), Gen X (1965-1980), Boomers (1946-1964), and Silent Generation (1928-1945).
What is the life progress bar based on?
The progress bar assumes an 80-year lifespan, which is close to the global average life expectancy. It shows what percentage of those 80 years you've lived. This is just for fun and doesn't predict your actual lifespan.
Is my birth date stored or shared?
No. All calculations happen in your browser using JavaScript. Your birth date is never sent to a server or stored anywhere except temporarily in your browser while you use the tool.