Turkey Cooking Time CalculatorHow Long to Cook a Turkey, by Weight & Method
Enter your turkey’s weight and when you want to eat. You’ll get the roasting time, the exact clock time to put it in the oven, when to start checking the temperature, and the day it has to go in the fridge to thaw.
By Manzoor Ahmad, Pharmacist & Calculator Developer · Updated
Roasting times follow the USDA FSIS turkey roasting chart. Doneness follows the 165°F safe minimum internal temperature.
How long do you cook a turkey?
Roast a thawed, unstuffed turkey at 325°F for about 13–15 minutes per pound. A 12 lb turkey takes about 3¼ hours, a 15 lb turkey about 3¾–4 hours, and a 20 lb turkey about 4½ hours. Add roughly 15–30 minutes if it is stuffed, or 50% more if it is still frozen. It is done when the thigh, wing and thickest part of the breast all reach 165°F.
Your turkey
Preset to Thanksgiving, Thursday November 26, 2026, at 3:00 PM.
Put it in the oven at 10:30 AM
USDA window: 3¾ – 4¼ hours
That’s about 15 minutes per pound for a 15 lb turkey.
Your turkey day timeline
Cook time by turkey weight
How long to cook a turkey by weight
Expected roasting times at 325°F unless noted, rounded to the nearest 5 minutes and calculated by the same engine as the calculator. Always confirm 165°F with a thermometer.
| Turkey weight | Unstuffed 325°F | Stuffed 325°F | Frozen 325°F | Unstuffed 350°F | Convection |
|---|---|---|---|---|---|
| 8 lb (3.6 kg) | 2 h 45 min | 3 h 0 min | 4 h 10 min | 2 h 25 min | 2 h 5 min |
| 10 lb (4.5 kg) | 2 h 55 min | 3 h 15 min | 4 h 20 min | 2 h 30 min | 2 h 10 min |
| 12 lb (5.4 kg) | 3 h 15 min | 3 h 35 min | 4 h 50 min | 2 h 50 min | 2 h 25 min |
| 14 lb (6.4 kg) | 3 h 35 min | 3 h 55 min | 5 h 25 min | 3 h 10 min | 2 h 40 min |
| 16 lb (7.3 kg) | 4 h 0 min | 4 h 10 min | 6 h 0 min | 3 h 30 min | 3 h 0 min |
| 18 lb (8.2 kg) | 4 h 15 min | 4 h 25 min | 6 h 25 min | 3 h 45 min | 3 h 10 min |
| 20 lb (9.1 kg) | 4 h 30 min | 4 h 40 min | 6 h 45 min | 4 h 0 min | 3 h 25 min |
| 22 lb (10 kg) | 4 h 45 min | 5 h 0 min | 7 h 10 min | 4 h 10 min | 3 h 35 min |
| 24 lb (10.9 kg) | 5 h 0 min | 5 h 15 min | 7 h 30 min | 4 h 25 min | 3 h 45 min |
Turkey cooking time per pound, by method
Oven roasting at 325°F is the only method with an official USDA time chart. The other rows are test-kitchen averages, so lean harder on your thermometer.
| Method | Temperature | Time per pound | Stuffing? | From frozen? | Best for |
|---|---|---|---|---|---|
| Oven roast | 325°F (163°C) | 13–15 min | Yes, to 165°F | Yes, +50% | Classic whole bird, any size |
| Hotter oven | 350°F (177°C) | 11–13 min | Yes | Yes, +50% | Crisper skin, shorter cook |
| Convection | 325°F fan | 10–12 min | Yes | Yes, +50% | Even browning, ~25% faster |
| Spatchcock | 450°F (232°C) | 6–8 min | No, bake separately | No | Fastest oven method, juicy breast |
| Deep-fried | 350°F oil | 3–4 min | Never | Never (fire risk) | Birds of 14 lb or less |
| Smoked | 225–250°F | 25–35 min | Never | No | Birds of 12 lb or less |
How long to thaw a turkey
The USDA allows three safe ways to thaw a turkey: in the refrigerator, in cold water, or in the microwave. Never thaw it on the counter. The outer layers sit in the 40–140°F “danger zone” for hours while the centre is still frozen.
- Refrigerator (best): about 24 hours for every 4–5 lb at 40°F or colder. A thawed bird keeps another 1–2 days in the fridge.
- Cold water: about 30 minutes per pound in its wrapper, with the water changed every 30 minutes. Cook it straight away.
- No time? Roast it from frozen. It is safe, but it takes about 50% longer and you can’t stuff it.
| Weight | Fridge thaw | Cold-water thaw |
|---|---|---|
| 8–12 lb | 2–3 days | 4–6 hours |
| 12–16 lb | 3–4 days | 6–8 hours |
| 16–20 lb | 4–5 days | 8–10 hours |
| 20–24 lb | 5–6 days | 10–12 hours |
How this turkey calculator works
The maths, step by step
The USDA publishes roasting times as weight brackets (12–14 lb, 14–18 lb and so on), and the brackets overlap at their edges. Read the chart literally and a 13.9 lb turkey and a 14.1 lb turkey can get answers 45 minutes apart. We draw a smooth curve through the middle of each USDA bracket, so every extra half-pound adds a believable amount of time. The answer always stays inside the official window.
For spatchcock, frying and smoking we use per-pound rates (7, 3.5 and 30 min/lb) because no official chart exists for them.
Worked example: a 15 lb Thanksgiving turkey
- 15 lb, thawed, unstuffed, 325°F oven, dinner at 3:00 PM on Thursday, November 26, 2026.
- USDA bracket 14–18 lb gives a 3¾–4¼ hour window, and the curve puts a 15 lb bird at 3 h 50 min.
- Out of the oven by 2:20 PM to allow 30 minutes of resting and 10 of carving.
- Into the oven at 10:30 AM, after preheating from 10:05 AM.
- Start checking the temperature at 1:45 PM, half an hour before the earliest USDA time.
- If it’s frozen, move it to the fridge by Sunday, November 22 (15 ÷ 4 = 3.75, rounded up to 4 days).
What temperature should a turkey be when it’s done?
Time gets you close. A thermometer tells you when it’s done. Check all three spots, because the breast and thigh cook at different speeds.
Insert beside the bone without touching it. This is the last spot to finish.
The joint closest to the body is slow to heat.
If the breast gets there first, cover it loosely with foil.
Stuffing must also reach 165°F in its centre. The temperature keeps rising by 5–10°F while the bird rests, so it is safe to pull it out the moment every spot reads 165°F.
6 turkey timing mistakes
- Trusting the pop-up timer. Many pop at 180°F in the breast, which means it’s already overcooked. Use a probe thermometer.
- Starting the thaw too late. A 20 lb bird needs 5 full days in the fridge, so start the Saturday before Thanksgiving.
- Stuffing the night before. Stuff just before roasting, and only loosely.
- Skipping the rest. Carving straight away loses juice. Rest it for 20–30 minutes under loose foil.
- Opening the oven every 15 minutes. Each peek costs heat. Baste no more than every 45–60 minutes.
- Frying a wet or frozen bird. Ice turns to steam in hot oil and can cause a boil-over fire.
Why I built the food-safety checks into this tool
At the pharmacy counter, the stomach bugs I’m asked about most after a holiday weekend come from undercooked or badly stored poultry. Turkey can carry Salmonella and Campylobacter. Leftovers kept warm too long can grow Clostridium perfringens, which causes cramps and diarrhoea within 6–24 hours.
The rules that prevent this are simple. Cook every part to 165°F. Refrigerate leftovers within 2 hours, in shallow containers. Eat them within 3–4 days, or freeze them. Be extra careful if anyone at the table is pregnant, elderly, very young, or on medicines that weaken the immune system.
If someone has bloody diarrhoea, a high fever or signs of dehydration, they should see a doctor rather than self-treat with anti-diarrhoeal medicines.
Related calculators
Turkey cooking time FAQs
An unstuffed 20 lb turkey takes about 4 hours 30 minutes at 325°F, within the USDA window of 4¼ to 4½ hours. Stuffed, allow about 4 hours 40 minutes. At 350°F it takes about 4 hours. Start checking the thigh temperature 30 minutes early.
At 325°F, plan on about 13–15 minutes per pound for an unstuffed turkey and 15–17 minutes per pound for a stuffed one. Bigger birds take fewer minutes per pound, so a 24 lb turkey averages about 12.5 minutes per pound and an 8 lb bird about 20.
Both are safe. The USDA chart is based on 325°F, which cooks more evenly and is more forgiving. At 350°F the turkey finishes about 10–15% sooner with crisper skin, but the breast can dry out faster on large birds. The USDA advises against roasting a turkey below 325°F.
A stuffed turkey takes about 15–30 minutes longer than an unstuffed one. A 15 lb stuffed turkey needs about 4 hours at 325°F. The stuffing in the centre of the cavity must reach 165°F, even if the meat gets there first.
Yes. The USDA confirms it is safe to roast a turkey from frozen, but it takes at least 50% longer. A frozen 15 lb turkey needs about 5¾ hours at 325°F. Remove the giblet packet with tongs once it loosens partway through, and never stuff or deep-fry a frozen bird.
Allow about 24 hours for every 4–5 lb in a refrigerator at 40°F or colder. A 12 lb turkey needs about 3 days and a 20 lb turkey about 5 days. For Thanksgiving on Thursday, November 26, 2026, a 20 lb bird should go in the fridge by Saturday, November 21.
Turkey is safe when the thickest part of the thigh, the innermost part of the wing and the thickest part of the breast all read at least 165°F (74°C) on a food thermometer. Stuffing must also reach 165°F.
Rest a whole turkey for 20–30 minutes, loosely covered with foil. The juices redistribute and the temperature climbs another 5–10°F. A 20 lb-plus bird can rest for up to 40 minutes and still be hot.
A spatchcocked (butterflied) turkey roasted at 450°F takes about 6–8 minutes per pound, so a 12 lb bird is done in roughly 80–95 minutes. Because the bird lies flat, the breast and thighs finish at nearly the same time.
Fry a fully thawed, completely dry turkey in 350°F oil for about 3–4 minutes per pound, so a 12 lb bird takes 36–48 minutes. Keep to birds of 14 lb or less, fry outdoors away from buildings, and lower the turkey in slowly with the burner off.
At 225–250°F, plan on 25–35 minutes per pound. Smoking is slow, so food-safety guidance favours birds of 12 lb or less, which pass through the 40–140°F danger zone quickly. Never stuff a turkey you’re going to smoke.
Yes. A fan-assisted convection oven usually roasts a turkey about 25% faster at the same 325°F setting. A 16 lb bird takes about 3 hours instead of 4. Check your oven manual, because some models already reduce the temperature automatically.
Manzoor Ahmad
Pharmacist · Calculator Developer · 13+ years building web tools
I’m a practising pharmacist who also designs and codes every DexoCalc calculator. For this tool, I took the USDA FSIS roasting chart and smoothed it so it gives sensible answers at any weight. I then added the planning I wished existed: a backwards timeline from dinner time, a thaw date, and the food-safety warnings I end up giving people at the pharmacy counter after the holidays.
References
- USDA Food Safety and Inspection Service. Let’s Talk Turkey Roasting (timetable for fresh or thawed turkey at 325°F).
- USDA FSIS. Let’s Talk Turkey: A Consumer Guide to Safely Roasting a Turkey (thawing, frozen roasting, stuffing).
- USDA FSIS. Safe Minimum Internal Temperature Chart.
- USDA FSIS. Deep Fat Frying Turkey.
- USDA FSIS. Smoking Meat and Poultry.
- CDC. Prepare Your Holiday Turkey Safely and Clostridium perfringens guidance.
Disclaimer: Cooking times are estimates. Ovens, roasting pans and turkeys vary, so the only reliable test of doneness is a food thermometer reading 165°F in the thigh, wing and breast. This tool gives general food-safety information, not medical advice.