Cooking Time Calculator

Use the rate for your specific meat, cut, and oven temperature rather than a universal minutes-per-pound figure. Multiply raw weight by that rate for an initial planning estimate (e.g., a 5 lb bone-in rib roast at 23–25 min/lb at 325°F gives approximately 115–125 minutes of oven time). Always begin checking doneness before the estimated window ends and verify with a digital thermometer.

There is no single cooking time for all oven temperatures. As an unstuffed US reference at 350°F (177°C), a 3–4 lb chicken takes about 1¼ to 1½ hours, while a 5–7 lb whole chicken takes 2 to 2¼ hours. Use the calculator to establish your schedule, then check the thickest parts of the breast and thigh with a thermometer to ensure it reaches the safe 165°F (74°C) threshold.

For an unstuffed whole turkey at 325°F (163°C), FoodSafety.gov lists approximately 2¾ to 3 hours for 8–12 lb, 3 to 3¾ hours for 12–14 lb, and 3¾ to 4¼ hours for 14–18 lb. Stuffed turkeys require additional time. Treat these bands as planning estimates and verify a minimum internal temperature of 165°F (74°C) before carving.

Under USDA guidance, all poultry (chicken and turkey) must reach 165°F (74°C). Whole cuts of beef, pork, lamb, and veal have a safe minimum of 145°F (63°C) followed by at least a 3-minute rest, while ground meats require 160°F (71°C). UK FSA guidance outlines validated time/temperature combinations, such as 70°C for 2 minutes or 75°C for 30 seconds.

No. Weight provides an essential baseline for meal planning, but cut thickness, shape, bone distribution, initial meat temperature, and oven airflow all influence how fast heat transfers to the core. Calculated cooking times should always be treated as an estimated window for when to begin testing with a thermometer.

Generally yes, but avoid automatically reducing both time and temperature by arbitrary percentages. A dependable starting rule is to reduce conventional recipe temperatures by 25°F (15°C) or keep the temperature unchanged and begin checking 15% to 20% earlier. Always follow your specific appliance manual and verify doneness with a thermometer.

Resting duration depends on cut thickness and overall mass. Whole roasts benefit from 15 to 20 minutes under a foil tent to allow juices to redistribute evenly. For food safety, USDA guidelines mandate at least a 3-minute rest for whole beef, pork, and lamb cooked to 145°F (63°C). Longer rests shown by the calculator are culinary recommendations for texture and juiciness.

Under USDA guidance, a whole turkey can safely be cooked from frozen in a conventional oven, but it takes substantially longer—typically at least 50% longer than a thawed bird. Never deep-fry a frozen turkey, follow manufacturer instructions, and confirm that the thermometer reads at least 165°F (74°C) in multiple internal locations.

Enter your target serving time in the calculator to work backwards through room-temperature tempering, oven preheating, active roasting, and mandatory resting. Build in a 15-minute buffer so that if your roast finishes early, it can rest comfortably in a warm kitchen without delaying dinner.

No. Bone conducts heat differently than dense muscle tissue, and cut geometry varies widely. For instance, USDA tables list a 4–6 lb bone-in beef rib roast at 23–25 min/lb at 325°F, whereas a boneless rib roast takes 28–33 min/lb. Use cut-specific references rather than a universal bone-in penalty.