Age Calculator
Find your exact age in years, months, weeks, days, hours, minutes and seconds from your date of birth.
100% Free
Down to the Second
Runs in Your Browser
Age Calculator
Select Your Date of Birth
Today's Date is:
Your Age is
27 years, 7 months, 12 daysYour Age in Months is
331 months, 1 weeks, 5 daysYour Age in Weeks is
1440 weeks, 6 days, 14 hoursYour Age in Days is
10086 days, 14 hours, 36 minutesYour Age in Hours is
242078 hours, 36 minutes, 25 secondsYour Age in Minutes is
14524716 minutes, and 25 secondsYour Age in Seconds is
871482985 seconds since your birthCalculated entirely in your browserYour birth date is calculated locally in your browser — nothing is sent to our servers.
Never transmittedThe dates you select are processed on your device and never leave your browser.
Nothing storedWe don't log or save any date you enter here.
No third-party sharingYour data is never shared with ads, trackers, or outside services.
Works offlineSince nothing is sent to a server, this tool keeps working even without an internet connection.
About Age Calculator
What Is an Age Calculator?
An age calculator computes exact age — in years, months, and days — from a date of birth to any reference date, handling leap years and varying month lengths automatically so you don't have to do the math by hand.
How to Use the Age Calculator
- Enter the date of birth
- Enter the reference date (defaults to today)
- Click Calculate
- Review the exact age in years, months, and days
Key Features
- Precise breakdown — years, months, and days, not just a rounded number
- Custom reference date — calculate age as of any date, not only today
- Handles leap years automatically
Who Uses This Tool
Anyone filling out a form requiring an exact age calculation. HR and administrative staff verifying eligibility ages for programs with specific date cutoffs.
Frequently Asked Questions
Does it account for leap years?
Yes, the calculation correctly accounts for leap years and varying month lengths.
Is this tool free?
Yes, calculating age is completely free.
Frequently Asked Questions
How is age calculated so precisely?
The tool takes the exact difference between your birth date and today's date, then breaks that duration down into years, months, weeks, days, hours, minutes and seconds.
Can I calculate age as of a different date?
Yes — change the "Today's Date" fields to any date you want to calculate age as of, not just today.
Does adding birth time improve accuracy?
Yes — click "Add birth time" to include hours and minutes for a more precise result, especially useful for the hours/minutes/seconds breakdown.
Is this tool free to use?
Yes, calculating your age with this tool is completely free, with no signup or usage limit.