The Korean War lasted a little over 3 years, from 25 June 1950 to 27 July 1953.

Quick Scoop

  • Start of the war: North Korean forces invaded South Korea on 25 June 1950.
  • End of active fighting: An armistice was signed on 27 July 1953, stopping large-scale combat.
  • Total duration: About 3 years and 1 month.
  • Important nuance: No formal peace treaty was signed, so North and South Korea are still technically in a state of war today, despite the armistice.

In everyday conversation, when people ask “how long did the Korean War last,” they usually mean the period of active fighting from mid‑1950 to mid‑1953, roughly three years.

TL;DR: The Korean War ran from June 1950 to July 1953, about three years of intense fighting, ending with an armistice rather than a full peace treaty.

Information gathered from public forums or data available on the internet and portrayed here.