年龄计算器Age Calculator
根据出生日期计算精确年龄Calculate exact age from birth date.
关于 年龄计算器About Age Calculator
想知道今天到底多少岁、距离下次生日还有几天？本工具根据出生日期计算精确到“年-月-日”的年龄，并给出下次生日倒计时等趣味信息，填表、办证、纪念日规划都能用上。Wondering exactly how old you are today, or how many days until your next birthday? This tool computes your exact age in years, months and days from your birth date, plus fun extras like a birthday countdown — handy for forms, documents and anniversary planning.
使用方法How to Use
- 选择出生日期。Pick your date of birth.
- 点击计算，获得精确到年、月、日的年龄。Click calculate to get your exact age in years, months and days.
- 查看下次生日倒计时等附加信息。Check extras such as the countdown to your next birthday.
常见问题FAQ
年龄的“月、日”是怎么算的？How are the months and days of age computed?
按日历借位计算：日不够向月借、月不够向年借，与日常“过生日”的计数方式一致，而非简单除以 30。By calendar borrowing: days borrow from months, months from years — matching how birthdays are actually counted, not a naive divide-by-30.
能计算非人物的“年龄”吗？Can it compute non-human "ages"?
可以。任何“距某日期多久”都能计算，如项目成立周年、宠物年龄、证件有效期剩余等。Yes. Any "time since a date" works: project anniversaries, pet ages, remaining document validity and more.
输入的出生日期会被保存吗？Is my birth date stored anywhere?
不会。计算在浏览器本地完成，不上传、不存储，关闭页面即消失。No. The calculation runs locally in your browser — nothing is uploaded or stored, and it disappears when you close the page.