Prime Rib Cooking Time

5 from 2 votes

Make the best prime rib of your life with my handy and kitchen-tested Prime Rib Cooking Chart! Tender, delicious beef is a guarantee!

Prep Time5

Cook Time1 40

Total Time1 45

Course: Prime Rib Recipes

Cuisine: American

Keyword: how long to cook prime rib, prime rib cooking time, prime rib cooking time per pound chart, rib roast cooking time

Servings:

Calories: 806kcal

See our Beef Temperature Chart for helpful tips on cooking any cut of beef!

Preheat your oven to 450°F and pat your boneless rib roast dry with paper towels. Generously season your roast with sea salt and black pepper. Give it a good coating.
4-6 lb. boneless prime rib roast, 1 Tablespoon sea salt, 1 teaspoon black pepper, OR our prime rib rub
Place the roast fat-side up on a pan with a roasting rack. Add it to the oven and cook for 15 minutes at 450°F. Once 15 minutes is up, reduce the temperature to 325°F and cook for an additional 1 hour and 40 minutes (4 lb. roast).
Once time is up, move the beef to a cutting board and tent it with foil loosely. Allow it to rest for 15 minutes under the foil. After resting, carve the beef against the grain for best results. Serve with au jus, and enjoy!
au jus

Always let the roast come to room temperature before cooking! This will ensure even cooking so the outside of the roast doesn't overcook while the chilled inside remains under temp.

It's always a good idea to sear the outside of the roast first by cooking it for 15 minutes at 450°F, then turn the temp down to 325°F.

Rib-in roasts will need longer cook times than boneless, so take this into account when deciding how long to cook your roast!

Like all meat, at the end of the day, the internal temperature is more important than the cooking time. Start checking the internal temperature of the meat at least ½ an hour before the estimated cook time is up.