Age calculator
Enter a date of birth and instantly see the exact age in years, months and days, and how long until the next birthday.
Age
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Enter a date of birth and the age appears right away.
Frequently asked questions
How is age calculated?
Full years and months are counted from the date of birth, and the rest are days. A year or month is completed on the same date, or, if that month has no such date (e.g. the 31st in a 30-day month), on the last day of that month.
When does someone born on 29 February celebrate their birthday?
In years that aren't leap years, the calculator counts the new year of age as reached on 28 February, the last day of the month, the same way deadlines in months and years are counted.
Is what I enter sent anywhere?
No. Everything is calculated in your browser and nothing is stored.