Turkey Calculator
Last reviewed: July 2026
Plan the whole turkey — how big to buy, when to start thawing, and when to slide it into the oven. Every result updates as you type.
Food-safety reminder: a turkey is done when the thickest part of the thigh — not touching bone — reads 165°F (74°C) on an instant-read thermometer. All times below are estimates; always cook to temperature, not to the clock.
Result
Estimated oven time at 325°F for a 14 lb unstuffed turkey, plus 35 min rest. Total time from oven-in to carve: 3.4–4.1 hr. Always confirm 165°F in the thickest part of the thigh.
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How this calculator works
How much turkey per person
The classic guideline is one pound of raw, bone-in turkey per person. That sounds like a lot until you remember that roughly half of a whole turkey's weight is bone, skin, and water lost to evaporation — a 15-pound bird realistically yields about six to eight pounds of carved meat. If you want leftovers for sandwiches, soup, or a turkey pot pie the next day, bump the planning number to about 1.5 pounds per person. Toggle the "plenty of leftovers" checkbox and this calculator does that math for you.
A few other rules worth internalising: any turkey under about 12 pounds is a small bird and roasts faster than the tables suggest; anything over 20 pounds is a large bird that will struggle to cook evenly and is often better served by roasting two smaller turkeys or spatchcocking the one you have. Very large birds also spend so long in the danger zone during thawing that food-safety experts increasingly recommend a fresh (never frozen) turkey once you cross about 22 pounds.
Thawing safely — this is the step most people underestimate
A frozen turkey must be thawed all the way through before it goes in the oven, and the only safe methods are the refrigerator, a cold-water bath, or the microwave (only for small birds, and only if you're cooking immediately afterward). Thawing on the counter is not safe: bacteria multiply rapidly once any part of the bird crosses 40°F (4°C), and the outer inch of a turkey warms up long before the frozen core has moved at all.
In the refrigerator, plan on 24 hours per 4 to 5 pounds. That means a 14-pound turkey needs a full three days on a rimmed tray on the bottom shelf; a 20-pound turkey needs closer to five days. This is the method the USDA recommends because a thawed turkey holds safely in the fridge for another day or two before it must be cooked — useful if your schedule shifts.
The cold-water method is much faster — about 30 minutes per pound. Submerge the wrapped turkey (still in its plastic) in a clean sink or cooler full of cold tap water, and change that water every 30 minutes so it stays cold. A 14-pound bird thaws in about 7 hours. Never use warm water: it thaws the outside too fast and moves the surface into the danger zone before the middle catches up. A turkey thawed in cold water must be cooked immediately — it does not hold in the fridge afterward.
Why stuffed birds take longer
Stuffing packed inside the cavity is dense, cold, and slow to heat. To reach the required 165°F at the centre of the stuffing, the surrounding meat has to spend significantly more time in the oven, which means white meat typically overcooks by the time the stuffing is safe. Most professional cooks skip in-bird stuffing for exactly this reason and bake it separately as dressing, where it can crisp on top and cook in about 45 minutes.
If you insist on stuffing the bird, add about two extra minutes per pound to your cook time, spoon the stuffing loosely (never packed), and stuff the cavity right before the turkey goes in the oven — never the night before. Check both the thigh and the centre of the stuffing with a thermometer; both need to reach 165°F.
Why resting matters
When you pull a turkey out of the oven, the muscle fibres are tight and the juices have been driven toward the surface. Slice it immediately and those juices run out onto the cutting board. Rest the bird tented loosely with foil for 20 to 45 minutes — longer for larger turkeys — and the fibres relax, the temperature evens out (thanks to carry-over cooking, the internal temperature will still climb another 5 to 10 degrees), and the juices redistribute through the meat. Skipping the rest is the single biggest reason home cooks end up with dry turkey.
Cook-time math
The estimate above assumes an oven at your chosen temperature with the turkey placed on a rack in a shallow pan and left uncovered for most of the roast. Baseline is roughly 12–15 minutes per pound for an unstuffed bird at 325°F, and 14–17 minutes per pound for a stuffed one. Lower oven temperatures (300°F) add about 15% to those numbers; hotter ovens (350°F) trim about 10%. These are estimates. Real ovens vary by 25°F or more from their dial setting, and every turkey shape, starting temperature, and pan choice changes the outcome. A thermometer is the only thing that matters at the finish line.
Source: Internal-temperature targets follow the USDA FSIS Safe Minimum Internal Temperature Chart; thawing times follow the USDA’s refrigerator-thaw guidance (about 24 hours per 4–5 lb).
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