How is the age gap calculated?

It takes the calendar difference between the two birth dates and breaks it into whole years, remaining months and remaining days, then also gives the total number of days between the dates.

Does the order of the dates matter?

No. The calculator always reports a positive gap and tells you which person is older regardless of which date you enter first.

Are the birth dates stored?

No. The calculation runs entirely in your browser and nothing is uploaded or saved.

Age Gap Calculator

Find the age difference between two people.

Age gap calculator

Enter two birth dates to find the exact age difference between two people, shown as years, months and days, plus the total number of days apart and a note on who is older.

The order you enter the dates in does not matter — the gap is always positive. This is handy for comparing siblings, partners or any two people. Everything is computed locally in your browser and nothing is uploaded.