The low setting on a slow cooker typically corresponds to a temperature range of about 190°F to 200°F (87°C to 93°C). If you want to duplicate the low setting of a crock pot in the oven, you can set the oven temperature to around 200°F (93°C).
However, it's important to note that not all ovens have a precise temperature control that goes as low as 200°F. Some ovens have a "warm" setting that is typically lower than the lowest temperature setting, and in such cases, you can use the "warm" setting instead. If your oven doesn't have a "warm" setting and the lowest temperature setting is higher than 200°F, you can try setting it to the lowest temperature available, but keep a close eye on your food to prevent overcooking.
Using an oven to replicate slow cooking can work for certain dishes, but it's essential to be mindful of the differences between the cooking methods. Slow cookers trap moisture and create a closed cooking environment, while ovens can be drier. You may need to adjust cooking times and add some liquid (e.g., broth or water) to the dish in the oven to prevent it from drying out.
If you have a specific slow cooker recipe that you'd like to try in the oven, it's best to look for similar oven-based recipes and follow their temperature and cooking time guidelines for the best results.