Age Calculator
Calculate your exact age in years, months, days, and more
About Age Calculator
Enter your birth date to see your exact age in years, months, days, weeks, and hours. Find your birth day and countdown to your next birthday.
- Shows exact age in years, months, days, weeks, and hours
- Calculates age as of any past or future date
- Reveals the day of the week you were born
- Countdown to next birthday with days remaining
- Handles leap years and varying month lengths correctly
Everything runs in your browser — your data never leaves your device.
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How to Use Age Calculator
- Enter your date of birth
- Optionally change the 'as of' date
- Click Calculate Age to see your exact age breakdown and next birthday countdown
Frequently Asked Questions
How is the age calculated?
The calculator computes the exact difference between your date of birth and the target date, accounting for varying month lengths and leap years.
Can I calculate age as of a past date?
Yes. Change the 'Calculate as of' field to any date to see what your age was or will be on that date.
Is my date of birth stored?
No. All calculations happen in your browser. No data is sent to any server.
