Age Calculator
Calculate your exact age in years, months, and days. Find out how many days you've lived, your next birthday countdown, and what day you were born.
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How to Use This Calculator
Find your exact age or calculate age for any date with our precise age calculator:
- Enter your birth date (or the date you want to calculate age from) using the date picker.
- Optionally change the 'Calculate age as of' date if you want to find age at a specific point in time.
- Click 'Calculate Age' to see your exact age in years, months, and days.
- View additional information like total days lived, next birthday countdown, and day of the week you were born.
Why This Matters
Knowing your exact age matters more than you might think. Age requirements appear everywhere - from legal milestones like voting and drinking age to insurance rates, retirement benefits, and age-restricted activities. Many government forms, medical records, and legal documents require precise age calculations. This calculator also satisfies curiosity about fun facts like how many days you've been alive or what day of the week you were born.
- Calculate exact age for legal documents and applications
- Determine eligibility for age-restricted benefits and activities
- Find out how many days you've been alive for milestone celebrations
- Calculate age differences between people accurately
- Plan countdown to significant birthdays (18, 21, 65, etc.)
Worked Examples
Exact Age Calculation
Born March 15, 1990, calculating age as of November 24, 2024.
Retirement Age
Born June 1, 1960. When will you turn 67 for full Social Security benefits?
Child's Age in Months
Baby born August 20, 2024. How old are they in months?
Common Mistakes to Avoid
- Forgetting that age changes based on the current date - your age is different in January vs December of the same year.
- Calculating age incorrectly around leap years - February 29 birthdays need special consideration.
- Confusing 'completed years' with 'running year' - legal age usually means completed years.
- Not accounting for time zones when precision matters - your birthday may differ by a day depending on location.
- Using rounded ages when exact age is required - some applications need years, months, and days.