Turkey Thawing Calculator
How long a frozen turkey (or any large bird or joint) takes to thaw safely in the fridge or in cold water, and when to start.
In the fridge a turkey thaws at about 24 hours for every 2 kg (4–5 lb): a 6 kg bird needs three days, and it can then wait another day or two.
How the turkey thawing calculator works
In the fridge a turkey thaws at about 24 hours for every 2 kg (4–5 lb): a 6 kg bird needs three days, and it can then wait another day or two. The cold-water method is faster — about 30 minutes per pound (65 minutes per kilogram) in a sealed bag in cold water changed every 30 minutes — and the bird must be cooked straight after. Never thaw at room temperature.
Formula: fridge: hours = kg ÷ 2 × 24; cold water: minutes = kg × 65
Worked examples
| Inputs | Thawing time | Note |
|---|---|---|
| 6 kg in the fridge | 3 days | 3 days |
| 14 lb in cold water | 6.9 hours | about 6.9 hours |
| 4 kg in the fridge | 2 days | 2 days |
FAQFrequently asked questions
Why not thaw it on the bench?
The outside reaches the temperature bacteria multiply at (above 5 °C / 40 °F) many hours before the centre thaws. Fridge or cold water keeps the whole bird below that line.
Can I cook a turkey from frozen?
Yes, in the oven, allowing about 50% longer than the usual roasting time and checking the centre reaches 74 °C (165 °F). It cannot be stuffed or brined, and it will not be as even.
How do I tell it is fully thawed?
The legs and wings move freely, the cavity has no ice, and a thermometer in the thickest part of the breast reads above 0 °C. If there are still ice crystals inside, give it a few more hours.
Why change the water every 30 minutes?
Because the water warms up; keeping it cold keeps the surface of the bird safe. A sealed bag stops water getting in and the bird contaminating the sink.
Where these figures come from
- US FDA — Safe Minimum Internal Temperatures — the internal temperatures the roasting calculator targets
- NIST SP 811 — Guide for the Use of the International System of Units — the exact weight and volume conversions used throughout
- Food Standards Australia New Zealand — food safety and labelling standards
Last checked: September 2026. Baking ratios follow standard baker's percentage practice; roasting guidance follows published safe internal temperatures.