Birthday Calculator
Calculate your exact age in years, months, weeks, and days. Find out how many days until your next birthday and discover interesting facts about your birth date.
Step 1: Birth Date
About Birth Date Calculation
Our calculator accounts for leap years and varying month lengths to give you the most accurate age calculation possible. Time calculations include hours and minutes if provided.
Step 2: Calculation Options
Timezone Consideration
For precise age calculations (down to minutes and seconds), timezone can be important, especially if you were born in a different timezone than your current location.
Age Calculation Results
Your Exact Age
Next Birthday Countdown
Time Until Your Next Birthday
Birthday Facts
Your next birthday will be on a Wednesday. You share your birthday with approximately 0.3% of the world’s population. Historically, January 1st has been celebrated as New Year’s Day since 45 BCE when Julius Caesar introduced the Julian calendar.
Life Milestones & Breakdown
Age Comparison
| Milestone | Age | Date Reached | Days Since/Until |
|---|
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