An age calculator is a tool that can help you find out your age in different units of time, such as years, months, weeks, days, hours, minutes and seconds. You can use an age calculator to compare your age with other people or events, or to plan for future occasions. To use an age calculator, you need to enter your date of birth and the current date or any other date of interest. The age calculator will then calculate your age and display it in various formats. You can also customize the output by choosing which units of time you want to see.