Age Calculator
Online age calculator. Precisely calculate age in years, months, and days. Shows next birthday countdown. All computation happens in your browser.
How to Use Age Calculator
Select your birth date and click "Calculate Age" to get your exact age in years, months, and days. Also shows the countdown to your next birthday. All calculation happens locally in your browser.
FAQ
How accurate is the age calculation?
Accurate to the day. The tool calculates total days from birth date to today, then converts to years, months, and days, accounting for leap years and actual days in each month.
What is the difference between international and Chinese age?
International age counts actual years since birth. Chinese traditional age (虚岁) counts you as 1 at birth and adds 1 each Lunar New Year. This tool calculates international age.
Can I calculate age for a future date?
Selecting a future date will show "Not yet born." The tool is designed for calculating current age.