Age & Date Calculator
Calculate exact age in years, months, days, hours, date differences, and birthday countdowns.
How to Use Age & Date Calculator
Select your Date of Birth (and optional birth time).
View your exact chronological age breakdown in real time.
Explore total lifetime stats: total days lived, total breaths, heartbeats estimate, and days until next birthday.
About Age & Date Calculator
Calculate precise chronological age down to the exact number of years, months, weeks, days, hours, minutes, and seconds. Also calculates the exact time difference between any two dates, working business days (excluding weekends), and gives a live countdown to your next birthday.
Frequently Asked Questions
Does this account for leap years?
Yes. The algorithm factors in leap year days (Feb 29) and varying month lengths accurately.
How exact is the result?
It gives your age in years, months and days, counted from the exact dates you enter.
Can I check age at a past or future date?
Yes. Change the target date to see how old someone was — or will be — on any day.
Further Reading
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