Date & Age
Age Difference Calculator
Enter the birth dates of two people to find the precise age gap between them in years, months and days, plus who is older.
Enter both birth dates above to see the exact age gap.
How to Use the Age Difference Calculator
- 1Enter the birth date for the first person (optionally add their name).
- 2Enter the birth date for the second person.
- 3The exact age gap appears instantly, along with the total days apart and who is older.
How the Age Gap Is Calculated
The calculator finds the calendar-accurate difference between the two birth dates, breaking it down into complete years, complete months and remaining days — the same logic used for calculating a single person's age, applied between two dates instead of one date and today.