How Age Is Calculated

An age calculator compares a birth date with another date and reports completed years, months and days.

What it means

An age calculator compares a birth date with another date and reports completed years, months and days.

Formula

Age = elapsed calendar time from date of birth

Example

Calendar-aware calculation accounts for different month lengths and leap years.

Use the calculator

Use CalcNexa to perform the calculation with your own values.

Open Age Calculator →