To work out the defrosting time for your turkey, check the packaging for any guidance first. If there aren't any defrosting instructions, use the following times to work out roughly how long it will take to thaw your turkey.
in a fridge at 4ºC (39ºF), allow about 10 to 12 hours per kg, but remember that not all fridges will be this temperature
in a cool room (below 17.5ºC, 64ºF), allow approximately three to four hours per kg, or longer if the room is particularly cold
at room temperature (about 20ºC, 68ºF) allow approximately two hours per kg
When your turkey is fully defrosted, put it in the fridge until you're ready to cook it. If this isn't possible, make sure you cook it immediately.