年龄计算器
使用国际式、韩式和年度计算系统计算年龄。
Overview
Three age systems coexist in East Asia, and they can disagree by two years for the same person on the same day. International age counts completed years and increments on the birthday. Korean counting age (세는나이) starts at one on the day of birth and advances every 1 January. Korean year age (연나이) is the bare calendar-year difference, with no birthday check at all.
国际年龄
岁
韩式年龄
岁
年度年龄
岁
已存活天数
距下次生日
天
年龄计算方式
| 方式 | 说明 |
|---|---|
| 国际式 | 每过一次生日增加一岁 |
| 韩式 | 出生即为1岁，每年1月1日增加一岁 |
| 年度年龄 | 当前年份减去出生年份 |
How to Use
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1
Enter your birth date
Select your date of birth, and optionally a target date to calculate age as of that day.
-
2
Choose the counting system
Compare international age with Korean, Vietnamese, Japanese, or Chinese age-counting systems.
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3
Read your exact age
Your age in years, months, and days — plus total days lived — is calculated instantly.
About
South Korea adopted international age as its legal standard in June 2023, so statutes, contracts and medical records now use completed years unless a provision says otherwise. Counting age survives in conversation, where relative age governs speech level and forms of address, and year age remains the basis for conscription screening, school entry and the Youth Protection Act — rules administered by birth year rather than by birth date.
Vietnamese tuổi mụ and the traditional Japanese kazoedoshi follow the same ordinal logic as Korean counting age, which is why a Korean, a Vietnamese and a Japanese record of the same birth year can each report a different number.