Calculate your exact age in years, months, and days. Find out your total days lived, zodiac sign, day of birth, and how many days until your next birthday — all instantly in your browser.
We all know our age in years — but sometimes you need it down to the exact day. Whether you're filling out an official form, checking eligibility for something, or just curious how many days you've been alive, doing the math manually is surprisingly annoying. This calculator handles leap years, month-length variations, and lets you check your age at any specific date. It even tells you what day of the week you were born on.
What You Get
Exact Age Breakdown
Get your precise age in years, months, and days — accounting for varying month lengths and leap years.
Multiple Units
See your age in total days, weeks, hours, and months for a comprehensive view of your lifetime.
Zodiac Sign
Discover your zodiac sign and the day of the week you were born on — fun facts at your fingertips.
Birthday Countdown
Know exactly how many days until your next birthday and the date it falls on.
Age Breakdown Details
| Unit | Description | Example (30 yrs) |
|---|---|---|
| Years/Months/Days | Exact age breakdown | 30 years, 4 months, 12 days |
| Total Months | Full months since birth | ~364 months |
| Total Weeks | Complete weeks lived | ~1,587 weeks |
| Total Days | Every single day | ~11,110 days |
| Total Hours | Days × 24 | ~266,640 hours |
Who Uses an Age Calculator?
Everyone
Find your exact age for forms, applications, and curiosity
Parents
Track children's ages in months and days
HR & Legal
Verify ages for compliance and eligibility
Birthday Planners
Count down to upcoming celebrations