Man, the 'ideal' chapter length always sparks such a mess on forums, and honestly? There isn't one. I read this whole thread expecting a magic number, but it's all over the place. I tried writing a novel once, made every chapter exactly 2,500 words because I heard that was 'pro.' The pacing felt robotic, like I was forcing cliffhangers where none belonged. Now I just let chapters end where the scene or emotional beat finishes, even if it's 800 words or 4,000.
Some readers get annoyed if chapters are too short on an e-reader—they feel cheated by the page count. Others, like me commuting, love short 1,200-word bursts that match a train ride. The ideal count is whatever stops me from putting the book down, not some spreadsheet average. I remember 'The Seven Husbands of Evelyn Hugo' had such varied lengths, and it never once bothered me; the story dictated the rhythm, not the other way around.