Is it longer then or than?

The correct phrase is “longer than” when you’re comparing two lengths, as in “Tolkien’s novel The Fellowship of the Ring is longer than The Hobbit.”

Only use “longer then” when you mean “longer at that time” (e.g., “I usually wore braids as a child because my hair was longer then”).

When you’re unsure whether then or than is the correct choice, a QuillBot Grammar Check can help you avoid mistakes.