Well 245*45% = 110mm

Ish, it does vary a little.

But either way thats 220mm sort of ballpark, aka nearly 9 inch, on top of your 16" wheel, so you are looking at around 25 inch.

If you want to be as low as 22" then you are going to need something like a 185/50/15, although even that is still over 22"

Im sure you have remembered that amount wrong!