How Long To Cook 3 Pound Roast Beef

Step 6: Roast at high heat

Roast for 15 minutes at 450°F. Do not cover while roasting.

How Long to Cook the Perfect Roast Beef (Temperature, Time, Pound)

For rare, roast each pound for approximately 13–15 minutes, for medium, 17–19 minutes, and for cooked through, 22–25 minutes. Use a thermometer to ensure the meat is the desired temperature—145°F for medium rare, 160°F for medium. Recall that the meat will continue to cook while it rests, so take it out of the oven when the internal temperature reaches about 5°F less than desired.

Tips for The Best Roast Beef

  • Every oven is different, so the timing will vary. Check the doneness of your roast with a meat thermometer for the most precise cooking time. Raise the internal temperature to 150°F (medium well), 145°F (medium rare), or 135°F (medium meat).
  • The length of time it takes to cook a roast depends on its size and shape. Generally speaking, after the first browning, cook your roast at 225°F for roughly 30 minutes per pound (for a medium rare) However, just to be sure, make sure to check at least 30 minutes before it’s supposed to be finished.
  • Because the bone can act as an insulator, you might need to cook bone-in roasts for a little longer than boneless roasts.
  • You can rub your roast with butter or olive oil if it’s fat-free. Or, to add some fat, place some bacon slices on top of the roast. If you use butter, it will brown more quickly, so watch it closely and reduce the initial browning time.

Roast Beef Internal Temperature

  • 120-130°F for rare
  • 130-135°F for medium-rare
  • 135-145°F for medium
  • 145-155°F for medium well
  • 155°F and above is well done

The only reliable way to determine when the roast has reached the desired temperature range is to use a meat thermometer. You run the risk of under- or overcooking the meat if you base your estimate solely on appearance.

There are plenty of cooking thermometers available. There is no need to guess because a lot of thermometers offer an instant digital read that indicates the internal temperature of the meat.