Age Calculator
Calculate exact age from date of birth
How to Use Age Calculator
- 1
Enter your date of birth using the date picker.
- 2
The tool calculates your exact age in years, months, and days as of today.
- 3
You can also enter a custom target date to calculate age on a specific day.
About Age Calculator
Calculate your exact age in years, months, days, weeks and total days. Find days until your next birthday.
Best Use Cases
- •Verify age for legal document requirements
- •Check eligibility for age-restricted services
- •Plan milestone birthdays and anniversaries
- •Calculate age at a future date
- •Find exact age for insurance forms
Examples
Legal verification
Enter DOB to confirm someone is over 18 for contract signing.
Milestone planning
Calculate the exact date of a 50th birthday from a DOB.
Custom target date
Find how old you will be on a specific future date.
Common Mistakes to Avoid
- !Entering the target date before the birth date
- !Confusing month and day in date formats
- !Forgetting leap years affect day counts
Limitations
- –Does not account for time zones
- –Date picker range depends on browser
- –Cannot handle dates before 1900 in some browsers
Frequently Asked Questions
How is age calculated?
Age is calculated by subtracting your birth date from today's date, accounting for month and day differences.
What is my age in days?
Enter your date of birth and the tool will show your total age in days, weeks, months, and years.