Age Calculator
Find your exact age in years, months and days from your date of birth — plus total days lived and your next birthday.
About this tool
This age calculator tells you your exact chronological age — years, months and days — from your date of birth, along with the total number of days you have lived and how many days remain until your next birthday.
Exact age matters more often than you would think: government forms, visa applications, school admissions, job eligibility limits, insurance and retirement calculations all ask for age on a specific date. That is why this calculator also lets you set an "age at" date — pick an admission deadline or exam date and see precisely how old you (or your child) will be on that day.
The math handles leap years and month-length differences correctly, counting complete years first, then complete months, then the remaining days — the same convention official bodies use.
How to use
- Enter your date of birth.
- Optionally change the “age at” date (it defaults to today).
- Read your exact age in years, months and days — results update instantly.