I intend to change my cooker but don't know the oven capacity of the one I already have in order to compare. I definitely don't want anything smaller! I have a feeling I have to do some maths!
TIA
I've often found a old shoes handy in difficult situations such as these.
The mans' size 12 is about a foot long and a guestimate the number of shoe lengths for each of the three dimensions. It sometimes helps to subdivide the length of a shoe into a smaller sub-dimension. My personal favourite is a unit of one-twelfth - which I nicknamed 'an inch' (I don't remember why now - it was a long time ago).
I've heard the fellows across the other side of the English Channel have a similar system using different lengths as the basic. Something to do with the distance from one's elbow to one's elbow. Sounds very complicated - I'll stick with shoes-lengths.
In fairness, if buying over the Internet then you can't easily measure the one you are considering buying. And capacity is usually given in litres which doesn't equate easily to feet and inches.
What one may be able to do is check your old cooker out on the Net to see if it gives a litre capacity for you to use as a yardstick.
But otherwise it's a case of doing the maths. Google tells me that 1 cubic foot = 28.3168466 litres.
redman... craft said 24 not 25 hamsters. Please check your facts before imparting advice as It's this kind of false information that can lead to 'new oven disappointment'...