How Long to Cook Pork Loin (Boneless)
Boneless pork loin roast. Not to be confused with the smaller pork tenderloin.
The Short Answer
Boneless pork loin roast. Not to be confused with the smaller pork tenderloin. Cook to an internal temperature of 145 degrees F.
Use an instant-read thermometer inserted into the thickest part.
Cooking Methods
🔥 Oven
Temperature: 375°F
Time: 60–90 minutes
For a 3-4 pound roast. Sear on all sides first for a golden crust. Use a thermometer; pull at 140 degrees F and rest. Internal temp will rise to 145 during rest.
Rest: 15 minutes
🔥 Grill
Temperature: 350°F
Time: 60–90 minutes
Indirect heat for a 3-pound roast. Sear over direct heat first for 2-3 minutes per side, then move to indirect. Monitor with a thermometer.
Rest: 15 minutes
🍲 Slow Cooker
Time: 360–480 minutes
Low setting with 1/2 cup liquid. 6-8 hours until fork-tender. Sear in a skillet before placing in the slow cooker for better flavor.
Rest: 10 minutes
Pork loin is the most commonly overcooked cut of pork. The USDA lowered the safe temperature from 160 to 145 degrees F back in 2011, but many people still overcook it. Pull it at 140 and let it rest. Slightly pink pork loin is safe and juicy.
Frequently Asked Questions
The USDA recommends 145 degrees F with a 3-minute rest. Pull the roast at 140 degrees F because it continues cooking during rest. Slightly pink in the center is perfectly safe.
Pork loin is a large roast (3-5 pounds), wider and fattier. Pork tenderloin is small (1-1.5 pounds), narrow, and very lean. They cook very differently due to size. Do not substitute one for the other without adjusting time.
Almost always overcooking. Pork loin is lean and dries out quickly past 150 degrees F. Use a thermometer, pull at 140, and rest covered with foil for 15 minutes.
The Bottom Line
Pork Loin (Boneless) cooking times vary by method and thickness. Always verify doneness with a thermometer reading 145 degrees F. The times above are guidelines; your specific results depend on the size and starting temperature of your food.