A paragraph typically has 3 to 7 sentences , but there is no strict rule. The key is that a paragraph should focus on a single main idea or topic. Here’s a bit more detail:

• Short paragraphs: Sometimes just 1 or 2 sentences, especially in creative writing or journalism, to create emphasis or pace.
• Standard paragraphs: Usually 3 to 7 sentences, enough to introduce, explain, and conclude an idea.
• Long paragraphs: Can be longer in academic or detailed writing, but they should still stay focused and not become too dense.

Ultimately, the length depends on the purpose, style, and medium of your writing.