Enter two dates of birth to see the age difference in years, months and days. It works for siblings, couples, friends or anyone.
Age difference
–
| Older person | – |
| Total days apart | – |
| Total months apart | – |
How it works
The calculator subtracts the earlier date of birth from the later one, borrowing days and months where needed, in the same way as the age calculator. Total days is the exact number of days between the two dates. The person with the earlier date of birth is the older one.
Frequently asked questions
How do I work out an age gap?
Subtract the earlier date of birth from the later one, or enter both above.
Does it handle leap years?
Yes. It uses real calendar dates.
Can I use it for pets or anything else?
Yes. It works for any two dates.
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For general use. Nothing you enter is stored.