🎉 Birthday & Milestones

Half Birthday Calculator

Find the date exactly halfway between your birthdays — your half birthday! Popular for kids born near Christmas or summer school holidays.

Your Date of Birth

Name (optional)

Why celebrate a half birthday?

Half birthdays are especially popular for children born near Christmas, New Year, or during summer school holidays — when friends and family are often unavailable for a full birthday party. Celebrating at the 6-month mark gives kids born on less convenient dates a chance to have their special day during a better time of year.