Plan before you publish
Knowing your page count early helps you price the book, estimate printing cost, and design the cover spine. The estimate uses typical words-per-page figures for each trim size and font: a 6×9 novel at 11pt fits roughly 340 words per page, so an 80,000-word novel lands near 235 pages.
This is an estimate — actual pages depend on chapter breaks, images, line spacing and front/back matter. Always confirm with KDP's Previewer after uploading.