How many words per page on MS Word doc?
1200 has been considered the “standard”. This assumes a line feed (blank line) between paragraphs. This value has been used by typesetters for many years. HOWEVER, you got me curious so I dragged out Word and made up a page, pretty densely typed with six “paragraphs”. Using the Tools menu, I located “Word Count” which yielded a value of approximately 3400 characters including spaces using the font and size you indicated. However, I suspect that this is rather denser than a normal paper or page would be, but it gives you a solid basis for calculation. A completely filled page with no paragraph breaks, but spaces to emulate normal typing yielded 4100 characters.
