About this tool
Enter a date of birth and get a precise age. You can also change the comparison date to find someone's age on a specific day.
How to use Age Calculator
- Pick the date of birth.
- Leave the second date as today, or choose another date.
- Press Calculate to see the exact age.
Frequently asked questions
Can I calculate age on a past or future date?
Yes. Change the 'Age on' date to any day after the birth date.
How are months and days counted?
Complete calendar months are counted first, and the remaining days are shown separately.