Birthday Calculator
Calculate your exact age, days until your next birthday and more. Discover interesting facts about your birth date and plan your celebrations.
Note: Enter your birth date and optionally a target date to calculate your age at that specific date. If no target date is provided, today's date will be used.
About the Birthday Calculator
What Is a Birthday Calculator?
A birthday calculator is a tool that helps you determine various interesting facts about your birth date. It can calculate your exact age in years, months, and days, count down the days until your next birthday, tell you which day of the week you were born, and even show famous people who share your birthday. It's a fun way to learn more about yourself and plan birthday celebrations.
How to Use the Calculator
- Select what you'd like to calculate from the dropdown menu
- Enter your birth date (month, day, and year)
- Optionally, enter a target date for age calculations
- Click the "Calculate" button to see your results
Types of Calculations
Exact Age: Calculates your precise age in years, months, and days.
Days Until Birthday: Shows how many days remain until your next birthday.
Famous Birthdays: Lists well-known people who share your birthday.
Day of Week: Tells you which day of the week you were born.
Full Details: Provides all of the above information in one comprehensive report.
Interesting Birthday Facts
- The most common birth month in the United States is August.
- The least common birth day is February 29th (leap day).
- Tuesday is statistically the most common day of the week to be born.
- September 9th is the most common birthday in many countries.
- Your birthday will fall on the same day of the week every 5, 6, or 11 years, depending on leap years.
Privacy Information
This calculator performs all calculations within your browser. No birth date information is stored on our servers. Feel free to use this tool with confidence knowing your personal information remains private.