Age Difference Calculator
Years, months and days between two birthdays.
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Age difference
5 years, 3 months, 7 days
That's 1,926 days total.
The full guide
How we calculate it
We compare the two dates day by day, accounting for the different lengths of months and for leap years. The “years, months and days” result is what most people mean by age difference — it matches how you'd say it out loud (“5 years and 3 months apart”).
Order doesn't matter
Put the dates in either order. We always compute the absolute difference, so you'll never see a negative number.
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