How big a turkey will fit in my oven?

[Flyonthewindscreen]

I will be feeding 5 adults and 2 DC and have an oven that measures 45cm w by 34cm high (also have a smaller top oven to do potatoes in etc). Does anyone know of a website, etc that tells you roughly how much turkey can be crammed into various sizes of oven? I just checked out the British Turkey marketing board website and they just gave rather worrying advice about hacking turkeys in two if they won't fit ....

we fitted a 4.5kg bird into my small built in oven - not sure of its dimensions. i worried but it ws fine.
if it doesn't fit taking the legs off is pretty easy.
or get a crown - less left overs/ smelly carcass and more compact for fitting in oven.

Thanks MrsFlux, that's reassuring.