An age calculator is a tool that helps individuals determine their age based on their birth date. By inputting the date of birth and the current date, the calculator can quickly provide the exact age in years, months, and days. This can be useful for various purposes, such as planning birthdays or understanding age-related milestones. Age calculators can be found in various forms, including online websites and mobile applications. Some calculators also offer additional features, such as calculating the age of historical figures or determining the age difference between two people. These tools are simple to use and provide instant results.