A recipe that is cooked on the low setting in your slow cooker will take about a quarter as long in a Dutch oven in a 325-degree oven (if it cooks for 8 hours on low, it will take two to three hours in the Dutch oven). A recipe that is cooked on high setting will take about half as long. But remember, that's only an estimate, so leave yourself a little extra time.

Although the math is pretty straightforward, I thought that some of you might appreciate a quick cheat sheet, so I created one based upon Kathleen Purvis’ suggestions:

SLOW COOKER DUTCH OVEN
12 hours/Low 3 hours/325° F
10 hours/Low 2 1/2 hours/325° F
8 hours/Low 2 hours/325° F
6 hours/Low 1 1/2 hours/325° F
5 hours/Low 1 hour, 15 min./325° F
4 hours/Low 1 hour/325° F
4 hours/High 2 hours/325° F
3 hours/Low 45 min./325° F
3 hours/High 1 1/2 hours/325° F
2 hours/Low 30 min./325° F
2 hours/High 1 hour/325° F
1 hour/Low 15 min./325° F
1 hour/High 30 min./325° F