An age calculator is a digital tool or program that automatically determines a person's exact age based on their date of birth. While you can manually calculate age by subtracting the birth year from the current year, an age calculator refines this by accounting for the specific month and day.
It calculates the precise time elapsed from the date of birth to the current date (or any other selected date), providing the result in years, months, and days. It automatically handles complex calendar factors like leap years and months with different lengths, ensuring the calculation is always accurate.