🎂 Age Calculator
Calculate exact age, days lived and next birthday countdown
✓ Runs entirely in your browser — your data never leaves this device
About This Tool
Calculate exact age, days lived and the countdown to your next birthday from a birth date. Also works for pet ages, work anniversaries or any time span.
How to Use
- Pick the birth date
- Exact age and days lived appear automatically
- The days until the next birthday are shown too
FAQ
How is exact age computed?
By whether the birthday has passed this year — same as legal age counting.
Future dates?
Yes, a future date simply shows the countdown.