There are a few different ways you can count words in a blog post. The easiest way is to simply count the number of words on each line of text. This can be done by using a word count tool like WordCounter. Another way to count words is to divide the total number of characters by the total number of words. This can be done using a character count tool like wc.org or SumoMe.
Both of these methods provide accurate counts, but they can be time-consuming to perform. A third way to count words is to use a keyword density tool like Google AdWords Keyword Planner or Google Trends. These tools provide estimates for how often certain keywords are being used in a given post, and they can help you determine which keywords are most important for your blog post. While all three methods provide valuable information, the most accurate way to measure word usage in a blog post is to use an algorithm that takes into account both line and character counts.