Taken from the Internet. This looks pretty good to me. Page count based on 250 words/page, which admittedly can vary by the book.
Short Story: 1,000 – 7,500 words or 4-30 pages.
The regular short story usually found in periodicals or anthology collections. Most genre zines will feature works at this length.
Novellette: 7,500 – 20,000 words or 30-80 pages.
Often a novellette-length work is difficult to sell to a publisher. It is considered too long for most publishers to insert comfortably into a magazine yet too short for a novel. Generally, authors will piece together three or four novellette-length works into a compilation novel.
Novella or Short Novel: 20,000 – 50,000 words or 80-200 pages.
Although most print publishers will balk at printing a novel this short, this is almost perfect for the electronic publishing market length. The online audience doesn’t always have the time or the patience to sit through a 100,000 word or 200 page novel. Alternatively, this is an acceptable length for a short work of non-fiction. On the other hand, quite a few publishers are now publishing very short novels, even from new authors. This is particularly true with small publishers and experimental or alternative fiction.
Novel: 50,000 -110,000 or 200-440 pages, optimal 320-440 pages.
Most print publishers prefer a minimum word count of around 70,000 words or 280 pages for a first novel, and some even hesitate for any work shorter than 80,000 or 320 pages. Imagine paying good money for a book less than a quarter-inch thick?
Yet any piece of fiction climbing over the 110,000 word mark also tends to give editors some pause. They need to be sure they can produce a product that won’t over-extend their budget but still be enticing enough to readers to be salable.
Epics and Sequels: Over 110,000 words or 440 pages.
If your story extends too far over the 110,000 mark, it may be too long for a single novel, however, many longer novels are published nowadays, often by well-known authors.