Well, there's no fixed rule. Some authors keep their fantasy novel chapters short, maybe 2,000 words or so, to keep the pace fast. Others go for longer chapters, up to 7,000 words, to delve deeper into the plot and characters. It all depends on what works best for the story.
The length of a fantasy novel chapter can be quite flexible. It often ranges from 3,500 to 6,000 words. Shorter chapters can be used for intense action scenes, while longer ones can handle complex character developments and world-building. It ultimately comes down to the author's vision and the needs of the story.