Pork Roast Cooking Time Calculator
Estimate roasting time for turkey, chicken, beef, pork, ham and lamb from weight and oven temperature, with USDA safe internal temperatures and rest times.
Processed entirely in your browser — nothing you enter here is ever uploaded.
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About this tool
This page opens the meat cooking time calculator with pork roast preselected, using the USDA-guideline rate of about 20 minutes per pound at 325°F (163°C). Enter your roast's weight in pounds or kilograms for an estimated total time, the USDA safe internal temperature, and a rest recommendation.
USDA lowered its recommended pork temperature to 145°F (63°C) with a 3-minute rest back in 2011, down from the older 160°F guidance that produced notoriously dry, grey pork — a whole pork roast cooked to 145°F and rested properly is safe and noticeably juicier than the well-done pork many people grew up with.
That 145°F figure is for whole cuts like a loin or shoulder roast — ground pork still needs 160°F (71°C), since grinding can distribute surface bacteria through the meat. For this whole-roast calculator, check the thickest part with a thermometer, rest it the full 10 to 15 minutes, and expect the internal temperature to climb a few more degrees during that rest.
Example. A 12 pound turkey at 325 F returns 156 minutes, which the page formats as 2 hours 36 minutes, plus the stored 165 F poultry figure and a 20 to 30 minute rest.
Limit. Oven choices are only 325 F, 350 F, and 400 F, and the minute rate is a per-pound table rather than a reading from a thermometer.