Age from Date Calculator - Find Exact Age in Years

Calculate exact age from any birth date. See age in years, months, days, and upcoming birthday countdown. Works for people, pets, or any event.

Birth Date

Date of Birth

Calculate Age On Leave as today, or set a future/past date

Next Birthday

Days Away

Turning

Day of Birth

Your Age

Years Old

Age in Different Units

Months

Weeks

Days

Hours

Minutes

Seconds

Life Statistics

Heartbeats (est.)	-
Breaths Taken (est.)	-
Hours Slept (est.)	-
Meals Eaten (est.)	-
Full Moons Seen	-

Milestone Birthdays

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Frequently Asked Questions

Age is calculated as completed years from birth date to today. You turn one year older on your birthday each year, not the day before.

Yes. If born on Feb 29, your birthday is typically celebrated on Feb 28 or Mar 1 in non-leap years, depending on jurisdiction.

Yes, you can set any target date to calculate what age would be at that point in time.

Statistics like heartbeats and breaths are estimates based on average rates (70 bpm, 16 breaths/min). Actual values vary by individual, activity level, and health.

Milestone birthdays are culturally significant ages like 18 (legal adult), 21 (drinking age in US), 30, 40, 50, 65 (retirement), etc. The tool highlights which you've reached.

Yes. Enter your pet's birth date to calculate their exact age in years, months, and days. Great for veterinary records and birthday planning.

The tool shows the day of the week for your birth date. Many believe birth day influences personality in some cultures.

Enter your birth date and set the target date to your desired retirement date to see your exact age at retirement. Common ages are 62-67 for US Social Security.

Because months have different lengths (28-31 days), age in months isn't simply years × 12. The tool calculates exact completed months, accounting for varying month lengths.

Yes, but remember legal age varies by jurisdiction and purpose. The tool shows exact age to help determine if someone meets minimum age requirements for contracts, voting, etc.