How Cooking Works

Pork Cooking Time Calculator

USDA-aligned calculator

Pork Cooking Time Calculator

Estimate cooking time for pork loin, tenderloin, chops or shoulder, then verify doneness with a thermometer.

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Safety: Time is only a planning estimate. Pork steaks, chops and roasts must reach at least 145°F (63°C) and rest 3 minutes. Ground pork requires 160°F (71°C).

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Pork cooking times by cut

Pork loin, tenderloin, chops and shoulder are different shapes with different amounts of connective tissue. The calculator therefore uses a USDA range tied to the selected cut and method instead of applying one universal number of minutes per pound.

CutMethodUSDA planning time
Bone-in loin roast, 3–5 lb325°F oven20–25 min/lb
Boneless loin roast, 2–4 lb325°F oven23–33 min/lb
Tenderloin, ½–1½ lb425°F oven20–30 min total
Boston butt, 3–6 lb350°F ovenAbout 45 min/lb
Boneless shoulder, 3–6 lbCovered braise2–2½ hours
¾-inch loin chopGrill or broil8–9 min total
1½-inch loin chopGrill or broil12–16 min total

Safe is not the same as pull-apart tender

USDA lists 145°F plus a three-minute rest as the safe minimum for whole pork cuts. A shoulder can be safe at that temperature yet still be firm because its connective tissue needs additional cooking to soften. When making pulled pork, keep following a tested recipe after the safety minimum until the meat is tender enough to shred.

How to check pork temperature

  1. Begin checking before the low end of the estimate.
  2. Insert the thermometer into the thickest section.
  3. Avoid bone, fat and the cooking pan.
  4. Check more than one place in an irregular roast.
  5. Rest steaks, chops and roasts for at least three minutes after reaching 145°F.

Cooking pork from frozen

USDA says it is safe to cook frozen pork in the oven, on the stove or on the grill without thawing first, but it may take about 50% longer. The calculator applies that allowance. Do not rely on the added time alone—verify the center with a food thermometer.

Why cooking time varies

  • A long, narrow roast cooks differently from a compact one of equal weight.
  • Bone placement changes heat flow.
  • Ovens cycle and may not match the displayed temperature.
  • Crowding, pans and opening the door alter the cooking environment.
  • Desired shoulder texture can require substantially more time than minimum safety.

Primary references: USDA Fresh Pork From Farm to Table, USDA roasting chart and FoodSafety.gov minimum temperatures.

Frequently asked questions

How long does a pork loin take to cook?
At 325°F, USDA planning ranges are 20 to 25 minutes per pound for a 3- to 5-pound bone-in loin roast and 23 to 33 minutes per pound for a 2- to 4-pound boneless loin roast.
What temperature should pork reach?
Pork steaks, chops and roasts need a minimum internal temperature of 145°F followed by at least a three-minute rest. Ground pork requires 160°F.
How long do pork chops take to cook?
USDA estimates 8 to 9 minutes total for a ¾-inch loin chop or 12 to 16 minutes for a 1½-inch chop when grilling over direct medium heat or broiling, turning once.
How long does pork shoulder take?
USDA estimates about 45 minutes per pound for a 3- to 6-pound Boston butt roasted at 350°F, or 2 to 2½ hours for a covered braise. Pull-apart texture can require additional cooking.
Can pork be cooked from frozen?
Yes. USDA says frozen pork can be cooked in the oven, on the stove or on the grill, but it may take about 50% longer. Always verify the internal temperature.