Age From Date Calculator

Enter your birth date as the start date and today's date (or any reference date) as the end date. The calculator derives the difference in full years, then months and days, matching how age is usually stated.

Age increases on each anniversary of your birth date. The calculator measures complete years and additional months and days from the start date through the end date, consistent with how legal and medical age is typically counted.

Yes. Set the end date to any day you need—such as a policy effective date or school cutoff—to see how old someone was or will have been on that specific day.