Turkey Cooking Time Calculator
Calculate turkey cooking time and temperature by weight. See timeline from oven to table.
By Konstantin Iakovlev · Updated September 2026 · Source: USDA FSIS — Let's Talk Turkey: A Consumer Guide to Safely Roasting a Turkey
Turkey Size
18.0 lbs
Cooking Time
3h 54m
Total Time
4h 24m
Cooking Timeline
| Recommended Turkey Weight | 18.0 lbs |
| Oven Temperature | 325°F |
| Cooking Time (13 min/lb) | 3h 54m |
| USDA timetable for this size (325°F) | 3h 45m – 4h 15m |
| Internal Temperature Target | 165°F |
| Resting Time | 30 min |
| Total Oven to Table | 4h 24m |
Tips
- Thaw in the refrigerator: about 24 hours for every 4-5 lbs of turkey
- Never thaw or leave the turkey out at room temperature; thaw it in the refrigerator, in cold water or in the microwave
- Check 165°F in the innermost thigh, the innermost wing and the thickest part of the breast
- Resting allows juices to redistribute for a moister bird
Use the Turkey Cooking Time Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only. Results are estimates based on the information you provide and the assumptions described on this page.
How It Works
Getting the bird out of the oven on time is the hardest part of hosting Thanksgiving or Christmas, and this tool takes some of the guesswork out of it. Enter your guest count and how many pounds of turkey to allow per person, and you'll get back the size of bird to buy, the oven temperature, an estimated roasting time and the total time from oven to table including the rest.
Several factors drive the estimate: the weight of the bird, whether it's stuffed or unstuffed, and the 165°F (74°C) internal temperature that food safety requires. The calculator uses 13 minutes per pound at 325°F (160°C) for an unstuffed turkey and 15 minutes per pound for a stuffed one, since the dense cavity slows how fast warmth reaches the center. The schedule then adds a 30-minute rest before carving; USDA's Food Safety and Inspection Service (FSIS) suggests 20 minutes. These per-pound rates are a rule of thumb and don't match USDA's roasting timetable at every size: FSIS lists 3¾ to 4¼ hours for an unstuffed 14-to-18-pound turkey at 325°F, while 13 minutes a pound gives about 3¼ hours for 15 pounds, so start early and let the thermometer decide.
Ovens rarely run true to their dials, so confirm doneness with a food thermometer: FSIS says to check the innermost part of the thigh and wing and the thickest part of the breast, and all three should read 165°F. Packing the cavity tight drives the cook time up and invites uneven results; FSIS recommends cooking stuffing in a separate casserole, and if you do stuff the bird, fill it loosely and make sure the center of the stuffing also reaches 165°F. That resting stretch after the bird leaves the oven matters just as much as the roasting itself, because cutting in early lets the juices run out and leaves the meat dry.
Example: Thanksgiving Turkey for 20
- 1 Input: 20 guests at 1 pound per person (the USDA allowance), unstuffed, for Thanksgiving dinner on Thursday, November 26, 2026.
- 2 Turkey size: 20 × 1 = 20 lbs. Roasting time: 20 × 13 minutes = 260 minutes, or 4 hours 20 minutes at 325°F, which falls inside FSIS's 4¼ to 4½ hours for an unstuffed 18-to-20-pound bird.
- 3 Add the 30-minute rest and the total from oven to table is 4 hours 50 minutes, so to carve at 6:00 PM the turkey goes in at about 1:10 PM. It's done when the thigh, wing and breast all read 165°F, whatever the clock says.
- 4 If the turkey is frozen, FSIS allows 4 to 5 days in the refrigerator for a 16-to-20-pound bird, so move it from the freezer to the fridge on Saturday, November 21 or Sunday, November 22.
Source: USDA FSIS — Let's Talk Turkey: A Consumer Guide to Safely Roasting a Turkey · Last updated: September 2026
Frequently Asked Questions
How long does it take to cook a turkey per pound?
What temperature should a turkey be when done?
How much turkey do I need per person?
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