When you’re trying to get a turkey on the table at a reasonable hour, its weight is the best place to start. A 10-pound bird and a 20-pound bird clearly won’t need the same amount of time in the oven, but the difference isn’t something you want to guess on Thanksgiving morning.

The chart below gives you a practical estimate based on USDA guidance for roasting a whole turkey at 325°F. It includes both stuffed and unstuffed birds, since adding stuffing changes the cooking time.

Turkey Cooking Time Chart

These USDA roasting estimates apply to a fresh or fully thawed whole turkey, starting at refrigerator temperature, in a conventional oven set to 325°F (about 163°C). Resting time is extra.

Times are estimates, not a guarantee of doneness. If your bird falls at the boundary of two weight ranges, allow for the longer range when planning and check its temperature before deciding it needs more time.

For example, a 16-pound unstuffed turkey falls in the 14- to 18-pound row, so allow about 3 hours 45 minutes to 4 hours 15 minutes in the oven. Stuffing the same bird changes the estimate to 4 to 4¼ hours, but the stuffing also needs its own temperature check.

How Long Should You Cook a Turkey Per Pound?

It’s tempting to turn turkey cooking into a simple formula such as “X minutes per pound,” but that isn’t the most reliable way to plan it.

Cooking time doesn’t increase at exactly the same rate for every turkey size. That’s why USDA guidance uses weight ranges rather than giving one minutes-per-pound number for every bird.

For example, at 325°F, an unstuffed 8–12 pound turkey is estimated to need about 2¾ to 3 hours, while a 20–24 pound turkey may need around 4½ to 5 hours.

So use the bird’s weight to find the appropriate range in the chart rather than multiplying its weight by one fixed number.

More importantly, treat that range as the point when you should expect the turkey to be getting close, not as an automatic finish time.

Does a Stuffed Turkey Take Longer to Cook?

Yes.

Stuffing adds another dense mass inside the turkey that also needs to heat through, so a stuffed bird generally requires more cooking time than an unstuffed one of similar weight.

And you now have an additional temperature to check.

For a stuffed turkey, both the meat and the center of the stuffing must reach at least 165°F.

If the turkey meat has reached a safe temperature but the stuffing hasn’t, the meal isn’t ready yet.

For simpler and more even cooking, USDA recommends cooking stuffing separately in a casserole dish.

What Temperature Should You Cook a Turkey At?

For the chart above, the answer is 325°F.

USDA recommends setting the oven temperature no lower than 325°F when roasting a turkey.

That detail matters because cooking times from one temperature shouldn’t simply be applied to another. A recipe using a different oven temperature will have its own timing.

If you’re following the chart in this guide, keep your oven at 325°F and use the times as estimates for when to begin checking the bird.

What Internal Temperature Should Turkey Reach?

No matter what your cooking chart says, a thermometer gets the final say.

For a whole turkey, USDA says to check the temperature in three places:

• Thickest part of the breast
• Innermost part of the thigh
• Innermost part of the wing

Each should reach at least 165°F (73.9°C).

Avoid pressing the thermometer against bone when taking a reading. You want to measure the temperature of the meat itself.

If one area is still below 165°F, keep cooking and check it again later.

Why Your Turkey May Take Longer Than the Chart

Two turkeys with the same weight won’t necessarily finish at exactly the same minute.

Your oven can run slightly hotter or cooler than its setting. Opening the door repeatedly lets heat escape. A stuffed bird behaves differently from an unstuffed one, and the temperature of the turkey when it goes into the oven can also affect how the cook progresses.

Even the shape of the bird matters. Weight tells you how much turkey you’re cooking, but not exactly how that weight is distributed.

That’s why a range is more useful than a single promised finish time.

If the chart says your turkey should take 3¾ to 4¼ hours, don’t assume something has gone wrong at 4 hours and 15 minutes. Check the temperature first.

How Early Should You Start Cooking the Turkey?

Work backward from when you want to eat, but give yourself some breathing room.

Start with the cooking range for your turkey’s weight, then add time for:

1. Preheating and getting the turkey ready for the oven

2. Any extra cooking if the bird isn’t at temperature when first checked

3. Resting before carving

4. Carving and getting everything onto the table

A turkey that takes slightly longer than expected can hold up the whole meal if there’s no extra time in your plan.

It’s usually better to have the bird ready a little earlier than to discover at dinner time that the thigh still needs another half hour.

How Long Should Turkey Rest Before Carving?

Once the turkey is safely cooked, resist the urge to carve it immediately.

USDA recommends letting a cooked turkey stand for about 20 minutes before carving.

Remember to include that rest when planning your meal. If you want to start carving at 4:30 p.m., the turkey needs to be finished cooking before then, not at 4:30.

Conclusion

Start with your turkey’s weight, choose the stuffed or unstuffed column, and leave time for resting and carving. That gives you a useful dinner plan without pretending the oven runs to an exact deadline. When the thermometer confirms 165°F in every required spot, you’re ready for the next step.