Cooking Conversions for Slow Cookers Traditional Oven or Stovetop LowLow Slow Cooker Setting (about 200°F)High Slow Cooker Setting (about 300°F) 15-30 minutes4-6 hours1-1/2 to 2-1/2 hours 35-45 minutes6-8 hours3-4 hours 50 minutes- 3 hours8-10 hours4-6 hours Dec 8, 2016