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You will never be intimidated by cooking prime rib again! With my kitchen-tested Prime Rib Cooking Time Chart, you'll be fully prepared with everything you need, from reading the temperature for prime ribs to cooking time, tips, and more! Your Christmas dinner will be amazing this year!
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Rib Roast Cooking Time
If there's one cut of meat it's critical to cook just right, it's prime rib! These deluxe meats are the height of luxury. Beautifully marbled and unbelievably tender, there's no cut out there that makes a more impressive- and delicious- centerpiece!
But there's no denying it: working with such a decadent and expensive cut of meat is intimidating. Never fear! With my prime rib cooking chart, you'll never again be left wondering about prime rib cooking time. No matter what roast you're working with, my guide will make cooking dinner easy!
Plus, I've included one of my best-ever prime rib recipes. Scroll on and enjoy tender, juicy, perfect prime rib, no matter how you like it.
How Long to Cook Prime Rib?
Boneless Prime Rib Cooking Time Chart Per Pound
When you want a fancy boneless roast dinner for your family but you're not serving many people, there's nothing like the convenience of a boneless prime rib! These cuts come in smaller sizes than bone-in prime rib and need about 15 minutes of cooking per pound.
This chart assumes boneless prime rib, a cooking temperature of 325°F, and medium-rare doneness. For best results, start the oven at 450°F and lower it after 15 minutes!
| Prime Rib Weight | Estimated Cooking time at 325°F |
|---|---|
| 4 lbs | 60 to 70 minutes |
| 5 lbs | 75 minutes to 85 minutes |
| 6 lbs | 1½ to 1¾ hours |
Standing Rib Roast Cooking Time Chart
For that perfect medium-rare prime rib, knowing the amount of time to cook the roast is key! And time all comes down to how big the prime rib is. These cuts come in weights anywhere from 4 lbs to almost 20 lbs, so getting the time right is important!
Note this table is for bone-in roasts, assuming 325°F and medium-rare doneness. For best results, start cooking at 450°F for a quick and easy sear, then lower the temp to 325°F. Cook for about 15 minutes per pound for medium-rare.
| Approximate lbs | Rib count | Total Estimated Time at 325°F |
|---|---|---|
| 4 to 5 lbs | 2 ribs | 60 to 75 minutes |
| 7 to 8½ lbs | 3 ribs | 1 hr 45 min to 2 hr 15 min |
| 9 to 10½ lbs | 4 ribs | 2 hr 15 min to 2 hr 45 min |
| 11 to 13½ lbs | 5 ribs | 3 hr to 3 hr 15 min |
| 14 to 16 lbs | 6 ribs | 3 hr 15 min to 4 hours |
| 16 to 18½ lbs | 7 ribs | 4 to 4 hr 30 min |
Prime Rib Temperature Chart
| Beef Doneness | Internal Temperature |
|---|---|
| Rare prime rib temp | 125°F - Bright red center |
| Prime rib medium rare temp | 135°F - Warm red in the middle |
| Prime rib medium temp | 145°F - Warm pink throughout |
| Prime rib medium-well temp | 150°F - Slightly pink center |
| Prime rib well-done temp | 160°F - Little to no pink throughout |
What makes the perfect prime rib is up to you! I like mine medium rare, with tender and juicy red meat in the center and a nice crisp on the outside. You might like it a little more cooked, or even more rare!
See all the prime rib temps for different degrees of doneness above. Make sure to use a meat thermometer!
Note: the USDA recommends all beef be cooked to an internal temperature of 145°F.
Prime Rib Cook Time Tips
- Always let the ribeye 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 cooking 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 cooking time is up.
Serving prime rib with a delicious horseradish sauce is the perfect way to complete a holiday meal! Try one of my easy Sauces for Prime Rib.
Prime Rib Cooking Time FAQ
Prime rib should be cooked for roughly 15-20 minutes per pound at 325°F. Bone-in roasts may take a little longer, as the bone heats more slowly than the meat; boneless will lean towards the lower amount of time. The most important part, however, is checking the internal temperature with a meat thermometer.
I prefer to cook prime rib at 325°F. This is because prime rib is a highly marbled cut of meat, and the fat will break down more when cooked at a lower temperature for a higher amount of time. This also ensures the bones in prime rib are cooked for long enough to heat through without overcooking the meat.
While there are many ways to cook prime rib, a good baseline is to cook the meat at 450°F for 15 minutes, then turn the heat down to 325°F for the rest of the cook time. This will give the outside of the meat a nice sear while still cooking at a low enough temperature that the inside of the meat cooks tender and juicy.
Best Prime Rib Recipes
- Grilled Prime Rib
- Smoked Prime Rib
- Sous Vide Prime Rib
- Instant Pot Prime Rib
- Air Fryer Prime Rib
- Perfect Prime Rib Roast
- Standing Rib Roast
Looking to make your best prime rib yet? Try out these incredible accompaniments; you'll be making up a restaurant-quality feast in no time!
- Cooking Prime Rib - a guide to all types of prime rib recipes!
- Dry Aging Prime Rib
- Prime Rib Butter Rub
- Prime Rib Dry Rub
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📋 Recipe
Prime Rib Cooking Time
Equipment
- Oven
Ingredients
- 4-6 lb. boneless prime rib roast
- 1 Tablespoon sea salt
- 1 teaspoon black pepper
- OR our prime rib rub
- au jus for serving
See our Beef Temperature Chart for helpful tips on cooking any cut of beef!
Instructions
- 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
Video
Notes
- 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.
Nutrition
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