How Long to Cook a Turkey Per Pound (and Why the Charts Disagree)

Search for how long to cook a turkey and you get five charts with five different answers. One says 15 minutes a pound. Another says 13. A third gives a range so wide it spans two full hours. They are not wrong, exactly. They are answering slightly different questions. Here is the per-pound math, why the numbers drift, and how to land your turkey on the table at the right time.

How long does a turkey take per pound?

At an oven temperature of 325 degrees Fahrenheit, plan on about 13 minutes per pound for an unstuffed turkey. Multiply the minutes by your bird's weight and you have a starting estimate. The chart below does the math for the common sizes.

Why do the turkey cooking charts disagree?

Charts disagree because per-pound timing is an estimate, and the estimate depends on conditions a chart cannot see. The same 14-pound turkey can finish 45 minutes apart in two different kitchens. These are the variables behind the spread.

• Oven temperature. A chart built for 350 degrees gives shorter times than one built for 325. The USDA says never to roast below 325, and most published charts use exactly that figure.
• Starting temperature. A turkey straight from the refrigerator takes longer than one that has rested briefly on the counter. A still-partly-frozen turkey can take 50 percent longer.
• Stuffed or not. Stuffing is dense and cold, and the oven has to bring the center of it up to a safe temperature too. That slows the whole cook.
• Convection or conventional. A convection oven moves hot air and runs faster, so a chart written for a standard oven will overestimate convection time.
• Oven calibration. Most home ovens read 10 to 25 degrees off the dial. That gap alone can shift a big roast by half an hour.
• Bird shape and pan. A shallow pan, a roasting rack, and wing tips tucked under the shoulders all change how heat reaches the meat.

Stuffed or unstuffed: how much does stuffing add?

A stuffed turkey takes roughly 30 to 45 minutes longer than the same bird unstuffed, because the stuffing in the cavity has to reach 165 degrees Fahrenheit on its own. The USDA recommends cooking stuffing in a separate dish instead. It is safer, it cooks more evenly, and it removes the hardest variable from your timing. If you do stuff the bird, stuff it loosely and just before roasting, and check the temperature at the center of the stuffing, not only the thigh.

Why the thermometer beats the timer

A turkey is safely done when the thickest part of the thigh, away from bone, reaches 165 degrees Fahrenheit. That is the only test that holds true regardless of oven, pan, or starting temperature. Per-pound math tells you when to start checking. The thermometer tells you when to stop.

Start checking about 45 minutes before the chart time. Turkeys often finish early, and an overcooked breast dries out fast. When the thigh reads 165, pull the bird, even if the timer disagrees.

How to plan turkey day backward from dinner

Work backward from the time you want to eat. Timing a turkey forward from when you wake up is how dinner ends up an hour late.

1. Pick your dinner time. Everything counts back from here.
2. Subtract 30 minutes for resting and carving.
3. Subtract the roasting estimate from the chart above for your bird's weight.
4. Subtract a 30-minute buffer, because turkeys and ovens are unpredictable, and waiting on a finished bird is easier than rushing one.
5. Subtract thawing time if the turkey is still frozen. A frozen turkey thaws in the refrigerator at about 24 hours per 4 to 5 pounds, so a 16-pound bird needs roughly 4 days.

Frequently asked questions

How long does a 20-pound turkey take to cook?

At 325 degrees Fahrenheit, an unstuffed 20-pound turkey takes roughly 4 hours and 20 minutes. Start checking the temperature about 45 minutes early, and roast until the thickest part of the thigh reads 165 degrees Fahrenheit.

Is it better to cook a turkey at 325 or 350?

325 degrees Fahrenheit is the standard and the USDA minimum. It cooks the bird evenly and gives you a wider margin before the breast dries out. 350 is faster but less forgiving. The per-pound times here all assume 325.

Can I cook a turkey from frozen?

Yes. The USDA confirms it is safe to roast a turkey from frozen, but it takes at least 50 percent longer than a thawed bird, and you cannot stuff it. Thawing in the refrigerator first is still the easier path if you have the days for it.

How do I know when the turkey is done without a thermometer?

You do not, reliably. Color and clear juices are old rules of thumb that fail often. A 165-degree reading in the thigh is the only sure test, and an instant-read thermometer is inexpensive. It is the one tool worth buying before Thanksgiving.