multiply the weight of your turkey by 13 minutes per pound.
- 10-pound turkey: about 2 hours 10 minutes.
- 12-pound turkey: about 2 hours 36 minutes.
- 14-pound turkey: about 3 hours 2 minutes.
- 16-pound turkey: about 3 hours 28 minutes.
- 18-pound turkey: about 3 hours 54 minutes.
- 20-pound turkey: about 4 hours 20 minutes.