This is the 625th most frequent Korean word.
달하는
"Reaching" or "amounting to."
달하는 is used here to denote reaching a particular point, numerically or physically.
이 산의 높이는 1500미터에 달하는다.
The height of this mountain reaches 1500 meters.
달하는 is used to indicate attaining a total amount or sum.
이 프로젝트의 비용은 총 1억 원에 달한다.
The cost of this project totals 100 million won.
달하는 is used here to describe achieving or reaching a level of expertise or knowledge.