Age Calculator
Find your exact age in years, months and days, count down to your next birthday, and see the day you were born, your star sign and upcoming life milestones.
Date of birth
Leave empty for today. Handy for an exam, visa or retirement cut-off date.
Your date of birth stays in your browser. Nothing is stored.
Born on a , .
Months
Days
Hours
⏱️ About seconds alive, and counting
Happy birthday! It's today.
🎂 Next birthday, your
Born on 29 February: in non-leap years, 28 February is used as your birthday.
Star sign
Chinese zodiac
Year of the
Generation
Life milestones
About the Age Calculator
The age calculator works out your exact age from your date of birth, in years, months and days, plus total months, weeks, days and hours lived. It also counts down to your next birthday, shows the day of the week you were born, your star sign, Chinese zodiac and generation, and upcoming milestones like your 10,000th day.
How to use it
- 1 Type your birth year (or pick it from the suggestions) and choose the month and day, or use the calendar picker.
- 2 Read your age instantly. Set an “age on date” to see how old you were or will be on another day.
- 3 Open the live birthday countdown, or copy a share link to send the result.
Frequently asked questions
How is exact age calculated?
Your age in whole years is the number of birthdays you have had. The months and days are counted from your last birthday up to today, using real calendar month lengths.
Can I calculate age on a specific date?
Yes. Fill in the “age on date” field to see how old someone was or will be on any date, for example an exam, visa or retirement cut-off date.
How do I get a countdown to my next birthday?
After you enter your birth date, press “Open live countdown”. It opens the countdown timer with your next birthday already set, ticking down to the second.
Does the calculator handle leap years?
Yes. The day totals use the real calendar. If you were born on 29 February, your birthday falls on 28 February in non-leap years.
Is my date of birth stored?
No. The date is only used in your browser to calculate the result and is not saved.
Related tools
Date Calculator
Days between dates, add days, and working days with holidays
Bangla Date Today
Today’s Bangla and Hijri date, converter and Bangla calendar
Timestamp Converter
Convert timestamps
Pregnancy Due Date Calculator
Due date, weeks pregnant, trimester and scan dates
Percentage Calculator
Calculate percentages
BMI Calculator
Calculate BMI