Age difference calculator
Enter two dates of birth to see the exact age difference between two people.
Free age difference calculator for couples and family
This age gap calculator works out the exact age difference between two people from their dates of birth, broken down into years, months and days. It is handy for the age gap between partners, siblings, parents and children, friends, or any two people, and for settling those "how many years apart are we?" questions.
How the age gap is calculated
We take both dates of birth, order them, and measure the calendar difference accounting for leap years and varying month lengths, so the result is an exact age difference rather than a rough estimate.
Frequently asked questions
What is a normal age gap between partners? There is no single number; many couples are within a few years, but the right gap is whatever works for the people involved.
Does the order of the dates matter? No, the calculator always shows the absolute difference, so you can enter the dates in any order.