Age Calculator

Calculate age from date of birth: full years, months, days, and the next birthday date.

Обработка выполняется локально в браузере. Данные не отправляются на сервер.

For this tool, processing runs locally in your browser and data is not sent to the server.

Калькулятор возраста is a free online tool. Рассчитайте возраст по дате рождения: полных лет, месяцев, дней и дату следующего дня рождения. Обработка выполняется локально в браузере. Данные не отправляются на сервер.

What it does

Output

Processing

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How to use

Enter the date of birth.
By default, age is calculated as of today.
If needed, change the "Age on date" field to calculate age on a specific day.
Review full years, detailed age, days lived, and the next birthday date.
Copy the age or detailed report.

More about this tool

The Age Calculator calculates age from a date of birth directly in your browser. It shows full years, detailed age in years, months, and days, days lived, the next birthday date, and how many days remain until it. You can calculate age as of today or choose any calculation date, such as an event date, document date, or form check. Calculation runs locally in your browser, and your data is not sent to the UtiLab server.

Runs in the browser
Data is not sent to the server
Calculates full years from date of birth
Shows age in years, months, and days
You can choose the calculation date
Shows days lived
Shows the next birthday
No registration required

Frequently Asked Questions

How do I calculate age from date of birth?

Enter the date of birth and the calculator shows full years plus detailed age in years, months, and days.

Can I calculate age on a specific date?

Yes. Change the "Age on date" field to calculate age on an event day, document date, or any other day.

What are full years of age?

That is the number of fully completed years between birth and the calculation date. If the birthday has not happened yet this year, one year is not counted.

Does the calculator include months and days?

Yes. Besides full years, it shows detailed age in years, months, and days.

Can it count how many days someone has lived?

Yes. The calculator shows an approximate number of days lived between the birth date and calculation date.

How is age calculated for February 29?

For a February 29 birth date, you can choose whether the birthday in a non-leap year is counted as February 28 or March 1.

Is my data sent to the server?

No. All calculations run locally in your browser and are not sent to the UtiLab server.

Does it use the exact time of birth?

No. The calculator uses calendar dates only, without the exact birth time.

Can I use the result for official documents?

The calculator provides a reference result. For legally significant documents, verify age rules for your specific case.

Do I need to register?

No. The tool works immediately without registration.

More about this tool

Runs in the browser
Data is not sent to the server
Calculates full years from date of birth
Shows age in years, months, and days
You can choose the calculation date
Shows days lived
Shows the next birthday
No registration required

Frequently Asked Questions

How do I calculate age from date of birth?

Enter the date of birth and the calculator shows full years plus detailed age in years, months, and days.

Can I calculate age on a specific date?

Yes. Change the "Age on date" field to calculate age on an event day, document date, or any other day.

What are full years of age?

That is the number of fully completed years between birth and the calculation date. If the birthday has not happened yet this year, one year is not counted.

Does the calculator include months and days?

Yes. Besides full years, it shows detailed age in years, months, and days.

Can it count how many days someone has lived?

Yes. The calculator shows an approximate number of days lived between the birth date and calculation date.

How is age calculated for February 29?

For a February 29 birth date, you can choose whether the birthday in a non-leap year is counted as February 28 or March 1.

Is my data sent to the server?

No. All calculations run locally in your browser and are not sent to the UtiLab server.

Does it use the exact time of birth?

No. The calculator uses calendar dates only, without the exact birth time.

Can I use the result for official documents?

The calculator provides a reference result. For legally significant documents, verify age rules for your specific case.

Do I need to register?

No. The tool works immediately without registration.