Cooking roast beef at 350 degrees is one of the most popular methods and in this article, we will explore the best techniques to achieve perfectly cooked roast beef every time. We will cover the optimal cooking time for different sizes of roast beef, including 2lb, 3lb, and 4lb roasts, and provide tips on how to determine when the meat is done to your desired level of doneness.
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Can You Cook Roast Beef At 350?
Cooking roast beef at 350°F is a recommended temperature as it provides a moderate heat that allows the heat to penetrate the meat slowly and evenly, resulting in a tender and juicy roast. Using this temperature also reduces the risk of the meat becoming tough, which can occur if cooked at a high temperature for an extended period of time.

How Long To Cook A Roast Beef At 350
The cooking time for roast beef at 350 degrees varies based on the size and type of roast. Here are some guidelines for common sizes:
- How Long To Cook A 2lb Roast Beef At 350: For a 2lb roast beef, you can expect to cook it for approximately 1 hour and 15 minutes to 1 hour and 30 minutes.
- How Long To Cook A 3lb Roast Beef At 350: For a 3lb roast beef, you can expect to cook it for approximately 1 hour and 45 minutes to 2 hours.
- How Long To Cook A 4lb Roast Beef At 350: For a 4lb roast beef, you can expect to cook it for approximately 2 hours and 15 minutes to 2 hours and 30 minutes.
- How Long To Cook A Bottom-Round Roast Beef At 350: For bottom-round roast beef, you can expect to cook it for about 2 hours and 15 minutes to 2 hours and 30 minutes.
How Long To Cook A Frozen Roast Beef At 350:
- For a 2lb frozen roast beef, you can expect to cook it for approximately 2 hours and 15 minutes to 2 hours and 30 minutes.
- For a 3lb frozen roast beef, you can expect to cook it for approximately 2 hours and 45 minutes to 3 hours.
- For a 4lb frozen roast beef, you can expect to cook it for approximately 3 hours and 15 minutes to 3 hours and 30 minutes.
How Long To Cook A Roast Beef At 350 Medium Rare:
- For a 2lb roast beef, you can expect to cook it for approximately 1 hour and 15 minutes to 1 hour and 30 minutes.
- For a 3lb roast beef, you can expect to cook it for approximately 1 hour and 30 minutes to 1 hour and 45 minutes.
- For a 4lb roast beef, you can expect to cook it for approximately 1 hour and 45 minutes to 2 hours.
How Long To Cook A Roast Beef At 350 Well Done:
- For a 2lb roast beef, you can expect to cook it for approximately 1 hour and 45 minutes to 2 hours.
- For a 3lb roast beef, you can expect to cook it for approximately 2 hours to 2 hours and 15 minutes.
- For a 4lb roast beef, you can expect to cook it for approximately 2 hours and 15 minutes to 2 hours and 30 minutes.
How To Cook Roast Beef In The Oven At 350:
- Preheat the oven: Preheat the oven to 350 degrees Fahrenheit.
- Season the roast: Season the roast generously with salt, pepper, and any other desired seasonings.
- Place the roast in a roasting pan: Place the roast in a roasting pan and place it in the oven.
- Cook the roast: Cook the roast for the recommended cooking time, based on its size and type, as outlined in the previous section.
- Check the internal temperature: Check the internal temperature of the roast using a meat thermometer. The internal temperature should reach 145°F for medium-rare, 160°F for medium, and 170°F for well-done.
- Let the roast rest: Once the roast has reached the desired temperature, remove it from the oven and let it rest for 10-15 minutes before slicing. This will allow the meat to reabsorb its juices and make it more tender.
- Serve: After the resting time, slice the roast and serve with your favorite sides.
Should I Cover My Roast In The Oven?
If you want a juicy and tender roast with a crispy exterior, it is best to cook the roast uncovered. This allows the heat to circulate around the meat, resulting in even cooking and a crisp crust.
However, if you prefer a moist and tender roast with a soft exterior, covering the roast with foil or a lid during cooking can help retain moisture and prevent the exterior from drying out.
Simply uncover the roast for the final 20-30 minutes of cooking to allow the exterior to brown and crisp up.
The best way to know when your roast beef is done is by using a meat thermometer. Insert the thermometer into the thickest part of the roast, avoiding the bone, and check the internal temperature.
The following temperatures correspond to the following levels of doneness:
- Rare: 120-125°F
- Medium-rare: 130-135°F
- Medium: 145°F
- Well-done: 160°F
It is important to note that the internal temperature of the roast will continue to rise by 5-10°F even after it has been removed from the oven, so it is best to remove the roast 5-10°F before it reaches the desired doneness.

FAQ
Does Cooking A Roast Beef On High Make It Tough?
Cooking a roast beef at a high temperature for an extended period of time can result in a tough and dry roast. Cooking the roast at a lower temperature, such as 350°F, for a longer period of time is recommended to result in a tender and juicy roast.
How Long Do You Store Leftover Roast Beef?
Leftover roast beef should be stored in an airtight container in the refrigerator. Properly stored, it will last up to 4 days. It can also be frozen for up to 3 months.
How Long Should I Let The Roast Beef Rest Before Slicing?
After removing the roast beef from the oven, it is recommended to let it rest for 10-15 minutes before slicing. This allows the internal temperature to continue to rise, resulting in a more evenly cooked roast.
How Long Does It Take To Cook A Roast Beef In The Air Fryer?
The cooking time for a roast beef per pound in the air fryer is approximately 10-12 minutes at 400°F.
How Long Does It Take To Cook A Roast Beef On The Grill?
The cooking time for a roast beef per pound on the grill is approximately 6-8 minutes at 400°F. Keep in mind that the exact cooking time will depend on the thickness and desired level of doneness of the roast.
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