Chronological Age Calculator

This calculator is provided as a helpful tool. Users are responsible for verifying all results and ensuring their accuracy in professional practice.
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How to use the Chronological Age Calculator

To use the Chronological Age Calculator, follow these steps:

  1. Enter the birthdate in the first field.
  2. Click the "Use today's date" button to automatically fill in the current date, or manually enter a reference date.
  3. Click the "Calculate Age" button to see the age in years, months, and days.

What is chronological age?

Chronological age is the exact amount of time that has passed since birth, measured in years, months, and days. It's commonly used in psychological and educational assessments to compare a person's performance to typical age-based expectations. This calculator helps quickly determine a person's age on a specific date (the date of testing).