Enter your dates
We don’t send your dates anywhere. Everything is calculated locally in your browser.
Age Calculator & Birthday Insights
Get your exact age, next birthday countdown, zodiac signs, birthstone, key milestones, and fun context about your birthday and birth year. All calculations run in your browser.
Age breakdown
Exact age
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Total days lived
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Weeks & days
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Hours / minutes / seconds
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Next birthday
Date
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Day of week
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Days until
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Age turning
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Zodiac & birth details
Western zodiac
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Chinese zodiac (approx.)
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Day of week you were born
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Birth month stone
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Upcoming milestone birthdays
Key ages like 18, 21, 30, 40, 50, and 65 with their dates and days until, based on your birth date and the calculation date.
| Age | Date | Day of week | Days until |
|---|---|---|---|
| Enter your date of birth and calculate to see milestone birthdays. | |||
Fun context for your birthday
Celebrities who share your birthday
Enter your date of birth to see links to famous birthdays on that day.
Things that happened the year you were born
We’ll link you to major events and cultural moments from your birth year.