Age Calculator - Calculate Your Exact Age from Date of Birth
Find your age in years, months, days, and discover what day you were born. Free DOB calculator for exact age calculation.
Enter Your Birth Date
Enter your date of birth
Your exact age will appear here
How to Calculate Your Age
Our age calculator makes it easy to find your exact age from your date of birth.
- 1 Enter your date of birth (DOB)
- 2 Choose calculation date (default: today)
- 3 Get instant results in multiple formats
What You'll Get:
- Exact age in years, months, and days
- Total age in months, weeks, days
- Age in hours and minutes (approximate)
- Day of the week you were born
- Days until your next birthday
Calculate Age in Different Units
See your age in various time formats for different perspectives on your life.
Years, Months & Days
Most common format for official documents.
Total Weeks
Popular for Memento Mori philosophy.
Total Hours
Inspiring perspective on time lived.
What Day Were You Born?
Discover which day of the week you were born - a fun fact many people don't know!
Famous Birth Day Rhyme
Monday's child is fair of face,
Tuesday's child is full of grace,
Wednesday's child is full of woe,
Thursday's child has far to go,
Friday's child is loving and giving,
Saturday's child works hard for a living,
But the child born on Sunday
Is bonny and blithe and good and gay.
Why Use an Age Calculator?
Registration Forms
Quickly determine exact age for government, school, or job applications.
Age Verification
Verify age eligibility for various legal and official purposes.
Health & Medical
Calculate age for medical records and pediatric development tracking.
Visa & Passport
Determine exact age for travel documents and visa applications.
School Admissions
Check age eligibility for grade levels and school enrollment.
Astrology & Fun
Discover your birth weekday for numerology or just for fun!
Frequently Asked Questions
How do I calculate my age from date of birth?
Enter your date of birth (DOB) in the calculator, then select today's date or any specific date. The calculator automatically computes your exact age in years, months, and days.
What day of the week was I born?
The age calculator automatically shows your birth day of the week. Simply enter your date of birth and the result displays which weekday you were born (Monday, Tuesday, etc.).
How many days until my next birthday?
The calculator shows a countdown to your next birthday in days. Enter your birth date to see exactly how much time remains until you turn a year older.
Does this calculator account for leap years?
Yes! Our calculator uses the date-fns library which accurately handles leap years and all date edge cases for precise age calculation.
Can I calculate someone else's age?
Yes! Enter any date of birth to calculate age. This is useful for verifying ages for registration, calculating age gaps, or finding ages for historical figures.
How do I find my birth year if I only know my age?
Use the formula: Current Year minus Your Age equals Birth Year. For example, if you're 25 years old in 2026, you were born in 2000 or 2001.