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Age Calculator by Date of Birth

Free age calculator by date of birth — get your exact age in years, months, days, hours and minutes, plus a countdown to your next birthday.

Date of Birth Calculate Age on Date (Optional, Defaults to Today)

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✨ Key Capabilities

Exact age breakdown in years, months, and days
Total lifetime milestones: days lived, hours lived, and minutes lived
Real-time countdown to your next birthday
Day of the week you were born

📖 How to Use the Age Calculator by Date of Birth

Select your Date of Birth in the date picker.
Optionally adjust the target calculation date (defaults to today).
Click "Calculate Exact Age" to reveal your comprehensive lifespan report.

❓ Frequently Asked Questions

Does this calculator account for leap years?

Yes, our calendar algorithm accurately calculates leap years and varied month lengths.

Is this age calculator by date of birth free?

Yes. Enter your date of birth above and the calculator shows your exact age in years, months and days, plus your next birthday countdown.

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