Have you researched the length of chapters in successful contemporary novels?
In the best-selling novels I have studied, it appears there is a standard length of between twelve and fifteen pages. There are exceptions, but not many exceed that length. If this is the publishing industry standard then we should take note.
However, the best-selling, award-winning author, Sharon Creech, of Walk Two Moons, The Wanderer, and Bloomability fame, has chapters that are a quarter, a half or three quarters of a page. And one of her chapters is only one sentence.
It is rare for chapters to be longer than fifteen pages. Those that are twenty plus pages, are usually split by two landmarks.
I believe a chapter should only be as long as what you have to say, and no longer, but fifteen pages or less seems reasonable.
A reader need not allot his/her leisure to reading according to chapters. That's where book marks come in, or the more convenient dog ears! One must not limit the length of chapters just for the convenience of reading. A chapter normally lasts as long as a scene in the episode requires. However, if it is too long then it could be tactfully divided into two chapters.
for me its as long or short as it needs to be to suit the story and for it to make sense and flow well. :) I try not to worry about these things, other wise i wont write anything at all and will be too concerned about the structure and nothing will work in the story. If someone finds my chapter too long or short, I cant see them reading the book at all. If the story is gripping, the chapter length shouldnt matter, because a person is so into reading it :) thats how i feel when I read books.
I loathe short chapters. They give me too many excuses to put the book down.