Age & date calculator
Find out exactly how old you are, when your next birthday is, or how many days lie between any two dates.
The dates you enter stay on this page. Nothing is sent or saved anywhere.
You are
Born on a
Months
Weeks
Days
Hours
Happy birthday! You turn today. Your next birthday, turning , is on , in .
Choose a date of birth to see your exact age.
Difference
days
In weeks
Working days (Mon to Fri)
The first date was later than the second, so they were swapped. Public holidays are not taken off the working days.
Public holidays are not taken off the working days.
Choose both dates to see how far apart they are.
How to use Age & Date Calculator
-
1
On "Age calculator", choose your date of birth. You can change the second date to see your age on any day.
-
2
Read your age, your age in months, weeks, days and hours, and the countdown to your next birthday.
-
3
To compare two dates, open "Days between dates" and choose both dates.
Frequently asked questions
How is age calculated?
It counts the full years since your birth date, then the extra months and days since your last birthday.
How do I count the days between two dates?
Choose both dates on the "Days between dates" tab. It shows the total days, the weeks and the working days.
What are working days?
Monday to Friday. Public holidays are not taken off, so subtract them yourself if you need to.
Can I find my age on a past or future date?
Yes. Change the "Age on this date" box to any day.
Are the dates saved?
No. They stay on this page.
More free tools
Loan Calculator
See your monthly payment, total interest and a month-by-month repayment schedule before you borrow.
Text Case Converter
Change text to UPPER, lower, Title or Sentence case, tidy extra spaces, or make a web-address style slug.
Invoice Maker
Create a clean invoice with your items, tax and payment details, then save it as a PDF. Nothing is uploaded.
Want to learn more?
Free courses, video tutorials and ready-made software, all from Francis Landford.