Turkey roasting time depends on three things: how much the bird weighs, whether it's stuffed, and how hot your oven runs. This calculator uses the same weight-band roasting chart that USDA and Butterball publish, so you get a realistic hour range instead of a single number that assumes every turkey behaves identically.

How the roasting-time chart works

Whole-bird roasting time doesn't scale perfectly linearly with weight — a small turkey cooks a bit faster per pound than a large one, because heat has less mass to penetrate relative to surface area. USDA FSIS and Butterball both publish roasting guidance as a range across 2–6 lb weight bands rather than a single minutes-per-pound constant, and that's the approach this calculator follows: it matches your entered weight to the closest of five bands (8–12, 12–14, 14–18, 18–20, and 20–24 lb) and returns that band's hour range for your chosen oven temperature and stuffed state.

These figures are estimates. Oven calibration, whether the bird is fully thawed, how often the door is opened, and even the shape of an individual turkey all shift the actual time by 20–30 minutes in either direction. Time gets you in the right window — a food thermometer gets you to done.

Inputs and what they mean

Weight should be the thawed, whole-bird weight in pounds, as printed on the packaging or measured on a kitchen scale. Stuffed adds roughly 30–50 minutes because the dressing inside the cavity absorbs heat and its center must independently reach a safe 165°F. Oven temperature — 325°F or 350°F — trades a longer, more forgiving roast for a shorter one with slightly more browning; both are USDA-safe when the internal temperature target is met.

Limits and edge cases

This chart assumes a fully thawed turkey roasted uncovered (or lightly tented) in a conventional oven — it does not cover frozen birds, deep-frying, smoking, spatchcocking, or convection-oven timing (which typically runs 15–20% faster). Weights outside the 8–24 lb chart range are estimated from the nearest band and should be treated as a rougher guide. For very large birds, consider tenting the breast with foil partway through roasting so it doesn't overcook before the thighs reach temperature. Whatever the calculator says, the turkey is only done when a food thermometer reads 165°F in the thickest part of the thigh — and, for a stuffed bird, in the center of the stuffing as well.