Potatoes in a slow cooker usually take about 2–3 hours on High or 4–6 hours on Low to become nicely tender, depending on size and type.

Basic timing guide

  • Whole or chunky potatoes generally soften in about 2–3 hours on High.
  • On Low, expect roughly 4–6 hours for fork-tender potatoes, sometimes up to 6–8 hours if you want them very soft.
  • Very large or whole “baked” style potatoes can push closer to 3 hours on Low in some newer recipes, but many traditional guides still suggest up to 6–8 hours on Low or 2–4 hours on High.

Factors that change the time

  • Size : Smaller cubes or baby potatoes cook faster than big whole russets.
  • Type: Russets often take on the longer end; waxy types like red or Yukon Gold can be ready a bit sooner.
  • Cooker: Older or cooler-running models may need extra time; stronger ones may finish at the low end of the ranges.

Quick practical rule

  • For most weeknight sides with chopped or baby potatoes:
    • High: 2–3 hours.
    • Low: 4–6 hours.
  • Start checking with a fork at the earliest time; if it slides in easily to the center, they are done.

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