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Calculate your exact age in years, months, and days from your date of birth.
Enter your date of birth
Defaults to today
age calculator is a free online tool that computes your exact age from your date of birth to any target date - typically today. Instead of counting years manually, our calculator breaks down your age into years, months, days, and hours, giving you a precise result in seconds.
Whether you need to verify your age for a legal document, calculate how old someone was on a specific date, or simply satisfy your curiosity, this free age calculator handles all edge cases - including leap year birthdays (February 29) and varying month lengths. Just enter your birth date, optionally set a custom "as of" date, and click Calculate.
The tool also shows your next birthday countdown, total months lived, total days lived, and total hours - useful for milestone tracking, retirement planning, or just a fun fact to share. All calculations run entirely in your browser; no data is sent to any server.
Select your birth date using the date picker.
By default, your age is calculated as of today.
Your exact age in years, months, days, and hours is displayed instantly.
The calculator computes the difference between your date of birth and the target date (today by default). It accounts for leap years and varying month lengths to give you an exact result in years, months, days, hours, and minutes.
Yes! You can set any "as of" date to calculate age at a specific point in time — useful for historical research, legal documents, or planning future milestones.
Absolutely. The calculator fully accounts for leap years (February 29 birthdays) and correctly handles all edge cases.
There is no practical limit. You can calculate ages for historical figures born centuries ago, as long as you know the date of birth.
This tool provides accurate calculations, but for official legal purposes always verify with authoritative documents. The calculator is intended for informational use.
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