Why Calculate Your Exact Age?
Your legal age for many things — voting, retirement, medical eligibility, insurance rates — is determined by your exact date of birth. An age calculator removes all ambiguity and gives you your precise age to the day.
Common Uses for an Age Calculator
- Retirement planning: Know exactly how many years, months, and days until you reach retirement age.
- Medical forms: Fill in precise age for age-specific treatments and dosages.
- Legal eligibility: Check if you're old enough for voting, driving, purchasing, or qualifying for programs.
- Birthdays and anniversaries: Know the exact number of days until or since a special date.
- Pediatric growth charts: Doctors use age in months for children under 2 years.
How to Calculate Your Age Online
1Open the Age Calculator tool.
2Enter your date of birth (day, month, year).
3Optionally set a target date (default is today).
4See your exact age broken down into years, months, days, hours, and minutes.
💡 Fun Fact: If you're 30 years old, you've lived approximately 10,950 days, 262,800 hours, and over 15 million minutes!
Age Calculation Across Different Cultures
In most Western countries, you become one year older on your birthday. In some East Asian cultures (particularly Korea), a baby is considered 1 year old at birth and everyone adds another year on New Year's Day — making the "Korean age" typically 1–2 years older than the international age.
FAQ
How is age calculated in leap years?
If you were born on February 29 (a leap day), in non-leap years most systems celebrate your birthday on February 28 or March 1, depending on jurisdiction. Our calculator handles this correctly.