The main modern Grinch movie most people mean is the 2018 animated film Dr. Seuss’ The Grinch , which runs about 1 hour 25–26 minutes (roughly 85–86 minutes).

Quick Scoop

If you meant a different Grinch version, here are the key runtimes:

  • 2018 animated Dr. Seuss’ The Grinch (Benedict Cumberbatch): about 1h 25–26m.
  • 2000 live‑action How the Grinch Stole Christmas (Jim Carrey): about 1h 45m.

So for planning snacks, bedtime, or a quick holiday watch, expect around 1.5 hours for the animated movie and just under 2 hours for the Jim Carrey version.

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