In MLA formatting, there is no set limit on how long paragraphs can be. However, it is important to consider readability and clarity when creating paragraphs. Generally, paragraphs should be organized around a central idea or topic sentence, and should include supporting evidence and analysis. This means that paragraphs may vary in length based on the complexity of the topic being discussed and the amount of evidence needed to support the central idea.
It is also important to consider the reader when creating paragraphs. Long blocks of text can be overwhelming and difficult to read, especially in academic writing. For this reason, it is often recommended to limit paragraphs to around 6-8 sentences or around 100-150 words. This will help to break up the text and make it easier for readers to follow the argument being presented.
In addition to considering length, it is important to use effective paragraph transitions to create a cohesive and well-organized text. Transitions can help to link ideas between paragraphs and create a clear and logical flow of information.
Ultimately, the length of paragraphs will depend on the specific requirements of the assignment as well as the writer's own judgement based on the topic and audience. The most important thing is to ensure that paragraphs are well-organized, focused, and effectively communicate the writer's ideas.