Turkey Cooking Time Calculator Formula

Understand the math behind the turkey cooking time calculator. Each variable explained with a worked example.

Use the Turkey Cooking Time Calculator

Formulas Used

Cooking Time

cook_time_min = weight_lbs * base_min_per_lb

Cooking Time

cook_time_hours = (weight_lbs * base_min_per_lb) / 60

Refrigerator Thaw Time

thaw_days = weight_lbs / 4

Rest Time

rest_time = 30 + weight_lbs

Approximate Servings

servings = weight_lbs * 0.75

Variables

VariableDescriptionDefault
weight_lbsTurkey Weight(lb)14
stuffedStuffed?0
base_min_per_lbMinutes per pound= 13 + stuffed * 2calculated

How It Works

How to Calculate Turkey Cooking Time

Formula (at 325°F / 163°C)

Unstuffed: 13 minutes per pound Stuffed: 15 minutes per pound

Thawing in Refrigerator

Thaw Days = Weight / 4 (about 1 day per 4 lbs)

Serving Estimate

About 3/4 pound (340 g) of whole turkey per person, accounting for bones.

Target Temperature

Breast: 165°F (74°C) Thigh: 175°F (80°C)

Worked Example

Calculate cooking time for a 14 lb unstuffed turkey.

weight_lbs = 14stuffed = 0
  1. 01Unstuffed rate: 13 min/lb.
  2. 02Cooking time: 14 x 13 = 182 minutes = 3 hours.
  3. 03Thaw time: 14 / 4 = 3.5 days in the refrigerator.
  4. 04Rest time: 30 + 14 = 44 minutes.
  5. 05Servings: 14 x 0.75 = 10-11 people.

Frequently Asked Questions

What temperature should I cook a turkey?

Cook at 325°F (163°C) for even cooking. Some recipes start at 450°F for 30 minutes, then reduce to 325°F.

How do I know the turkey is done?

Use a meat thermometer. The breast should reach 165°F (74°C) and the thigh should reach 175°F (80°C). Do not rely solely on the pop-up timer.

How long should the turkey rest?

Rest for at least 30-45 minutes, loosely tented with foil. This makes the meat juicier and easier to carve.

Ready to run the numbers?

Open Turkey Cooking Time Calculator