나이 계산기
만 나이를 년·개월·일 단위로 정확하게 계산하고 다음 생일까지 남은 기간을 확인하세요.
모든 계산은 브라우저에서만 이루어집니다. 생년월일은 어떤 서버에도 전송되거나 저장되지 않습니다.
결과
사용 방법
Enter a date of birth. The age is calculated as of today by default; change the reference date to compute an age at any point in time — past or future. Alongside the exact age you get the total in months, weeks and days, the weekday of birth, and how long until the next birthday.
예시
- Born 2000-02-29: in common years the birthday anniversary is counted on February 28, so on 2026-02-28 the exact age reads 26 years 0 months 0 days.
- Born 1990-07-26, on 2026-07-26 the age is exactly 36 years 0 months 0 days.
자주 묻는 질문
How is “exact age” defined here?
It is the completed years, months and days between the birth date and the reference date — the same convention used on official documents in most countries. You turn a year older on your birthday, not on January 1.
What about people born on February 29?
In common years the next birthday is shown as February 28. The total-days figure is always exact regardless, because it counts real calendar days.
Is my date of birth uploaded anywhere?
No. This page is a static file; the calculation runs entirely in your browser and the date you enter is never transmitted or stored on a server.