Calculate exact sibling age gap and check Irish Twin status.
What Are Irish Twins?
“Irish twins” is a non-medical term used to describe two siblings born
very close together — traditionally within 12 months, though many people
extend the definition to 18 or even 24 months.
Age-by-Age: Tracks yearly gap between siblings.
Week-by-Week: Shows precise day count for accurate comparison.
This calculator reveals exact years, months, days, and total weeks.
