General rule of thumb for fictional novels is 80,000 to100,000 words for a first crack at bat. Although Tolkien’s Lord of the Rings trilogy’s longest was over 175,000 words. J.K Rowling clocked in with 257,000 for Harry Potter and the Order of the Phoenix the fifth book in the series. War and Peace clocks in at 587,000 words. Les Miserables‘ English translation had a 546,000 word count.