QUICK GUIDE
Calculate an exact age
Choose a date of birth and the calculator compares it with today’s date. It accounts for the different lengths of calendar months and leap years when calculating years, months, and days.
FREE ONLINE CALCULATOR
Age Calculator
Find your age in years, months, and days, then see how long it is until your next birthday. Enter a date of birth to calculate it privately in your browser.
Open the age calculatorNo account needed. Your calculation stays in your browser.
QUICK GUIDE
See your next birthday
The result also tells you how many days remain until your next birthday, including when your birthday falls today.
QUICK GUIDE
Your birth date stays private
Age is calculated in your browser. Your date of birth is not uploaded or stored by Quick Tools.
COMMON QUESTIONS
About the age calculator
Does the age calculator account for leap years?
Yes. It uses calendar dates, so leap days and variable month lengths are included in the age calculation.
Can I calculate someone’s age on a past date?
This calculator reports age as of today. For a past or future reference date, use the date difference calculator.
Is my date of birth saved?
No. The calculation happens in your browser and your birth date is not sent to a server.