Calculate your exact age in years, months and days.
Select your date of birth and choose Calculate age. The calculator compares that calendar date with today, or with a date you select, and shows completed years, months and remaining days. Your date stays in this browser while the calculation runs.
It counts whole calendar years first, then whole calendar months, then the remaining elapsed days. Total days count the midnights elapsed after the birth date, so the birth date itself is day zero. Completed months use calendar boundaries rather than an average month length. A February 29 birthday falls on February 28 in non-leap years for this calculator; daylight saving time does not affect day counts.
Enter your birth date and calculate it as of today or another selected date. The result uses calendar years, months and days.
The elapsed-days result counts the number of date boundaries between your birth date and the reference date. It does not count the birth date as an additional day.
In non-leap years, the calculator treats February 28 as the birthday anniversary. Local laws and policies can use different rules.
Yes. Turn on “Calculate age on a different date” and select the date. The reference date can be in the past or future, but it cannot be before the birth date.
No. Age calculation happens in your browser, and the date is not sent to the calculator API.
Find the time between any two dates with the Date Calculator.
Open Date Calculator →This tool calculates calendar age for general information. For legal, financial or official-document use, confirm the applicable rules with the relevant authority; this calculator does not determine eligibility.
Discover your exact age
Enter your date of birth to get started.