This is the 2142nd most frequent Korean word.
이내로
"이내로" means "within" or "inside of (a limit or time)."
이내로 is used here to indicate a time limit.
우리는 30분 이내로 도착할 예정입니다.
We are expected to arrive within 30 minutes.
이내로 specifies a maximum distance here.
최대 5킬로미터 이내로 이동하세요.
Move within a maximum of 5 kilometers.
이내로 implies a time frame within which an action must be completed.