Use this free half birthday calculator to find the date that falls exactly six months after your birthday.
How to use this half birthday calculator
Enter your date of birth and press Find My Half Birthday. A half birthday falls six months after your regular birthday, and the result shows the next one and how many days away it is.
Why celebrate a half birthday?
Families often celebrate half birthdays for babies (6 months old) and for children whose real birthday falls during school holidays, so they can celebrate with friends.
Example
If your birthday is 15 January, your half birthday is 15 July.
Frequently asked questions
How is a half birthday calculated?
Add exactly six calendar months to your birthday date.
Is my data stored?
No. The calculation runs in your browser.