The Appalachian Trail is about 2,200 miles long, or roughly 3,500 kilometers.

Quick Scoop: Key Facts

  • Official measured length in recent years is around 2,190–2,200 miles (about 3,520–3,540 km).
  • The exact number changes slightly year to year as sections are rerouted or more precisely measured, so you’ll often see figures like 2,190 miles , 2,184 miles , or 2,198.4 miles all used in credible sources.
  • The trail runs from Springer Mountain in Georgia to Mount Katahdin in Maine, crossing 14 states along the Appalachian Mountains.

So if you’re answering “how long is the Appalachian Trail” in a quick, up‑to‑date way, the most accurate phrasing is: “about 2,200 miles long, and the exact length changes slightly over time.”

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