You should plan on about 24 hours of fridge time for every 4–5 lb of turkey, or about 30 minutes per pound in cold water.

Quick Scoop: How Long to Thaw a Turkey

1. Fridge thaw (safest, most common)

Rule of thumb:

  • 24 hours in the fridge for every 4–5 lb of turkey.

Approximate times by whole-bird weight:

  • 4–12 lb: 1–3 days
  • 12–16 lb: 3–4 days
  • 16–20 lb: 4–5 days
  • 20–24 lb: 5–6 days

Extra notes:

  • Keep fridge at or below 40°F (about 4°C).
  • A fully thawed turkey can sit in the fridge 1–2 days before cooking.

Example:
If you have a 15 lb turkey, you’ll want about 3–4 days in the fridge to thaw it fully.

2. Cold-water thaw (faster, more hands-on)

Rule of thumb:

  • 30 minutes per pound in cold water , changing the water every 30 minutes.

Approximate times:

  • 4–12 lb: 2–6 hours
  • 12–16 lb: 6–8 hours
  • 16–20 lb: 8–10 hours
  • 20–24 lb: 10–12 hours

Safety musts:

  • Keep turkey in leak-proof packaging, fully submerged in cold water.
  • Change the water every 30 minutes to keep it cold.
  • Cook immediately after a cold-water thaw ; don’t refreeze or put it back in the fridge for “later.”

Example:
A 16 lb turkey in cold water will take around 8 hours , with fresh cold water every 30 minutes.

3. Quick checklist so you don’t stress

  • Decide your method: fridge (slow, easy) or cold water (fast, hands-on).
  • Check the weight on the turkey label.
  • Count backward from your planned serving time using the guides above.
  • Never thaw on the counter—room-temperature thawing is unsafe.

If your turkey is still a bit icy on the big day, you can still roast it; just expect a longer cooking time than for a fully thawed bird. Many home cooks on forums note that slightly frozen-in-the-center turkeys simply take longer but still turn out fine when cooked to a safe internal temperature.

TL;DR:

  • Fridge: 24 hours per 4–5 lb (e.g., 15 lb ≈ 3–4 days).
  • Cold water: 30 minutes per lb, change water every 30 minutes, cook right away.

Information gathered from public forums or data available on the internet and portrayed here.