Age Calculator
Calculate your age in years, months, and days.
Time moves fast, and keeping track of exact durations can be tricky. Our Age Calculator solves the simple yet surprisingly complex question: "Exactly how old am I?" Beyond just counting birthdays, it calculates years, months, and days down to the wire. It is perfect for determining age eligibility for school or legal contracts, planning milestones, or just settling debates about who is exactly older and by how much.
Dates
Your Age
Frequently Asked Questions
More Than Just a Number
Time is the most valuable resource we have. This Age Calculator does more than just tell you how old you are—it helps you calculate precise durations for legal documents, anniversaries, or simply satisfying your curiosity.
1. Chronological vs. Biological Age
Your result here is your Chronological Age—the exact amount of calendar time that has passed since your birth.
However, scientists also study Biological Age, which measures how fast your cells are deteriorating. Factors like stress, sleep, diet, and exercise can make your "body's age" significantly older or younger than your birthday suggests!
2. Fun Facts About Time
- Leap Years: Every 4 years, we add a day (Feb 29) because Earth's orbit is actually 365.24 days long. Without this correction, our seasons would drift by 24 days every 100 years.
- The Billion Club: If you are 31 years and 8 months old, you have lived approximately 1 billion seconds!
- Korean Age: Historically, South Koreans were considered 1 year old at birth and gained a year on New Year's Day. They recently switched to the international standard used by this calculator.
3. Frequently Asked Questions (FAQ)
Q: Is a month always 30 days?
No. This calculator accounts for the exact number of days in each specific month (28, 29, 30, or 31) between your two dates for maximum accuracy.
Q: Why calculate age at a future date?
This is useful for knowing exactly how old you will be at a major future event, such as your wedding, retirement, or the turn of the next century.