Tool guide
How to use the sentence length checker well
A sentence length checker finds long sentences that may be hard to read. Long sentences are not always wrong, but too many of them can make essays, research papers, and speeches confusing.
Use this tool after drafting to check average words per sentence, long sentence count, and readability signals.
Why this tool matters
Clear writing often uses a mix of short, medium, and longer sentences. If every sentence is long, readers may lose the main idea before reaching the end.
Step-by-step use
- Paste your draft into the box.
- Review average words per sentence.
- Read the long sentence list.
- Split or simplify sentences that contain too many ideas.
How to read the results
- Sentences above 25 words deserve a closer look.
- Split a sentence when it has two or more separate ideas.
- Keep key definitions or research terms clear even when shortening.
Classroom use cases
- Editing research abstracts.
- Improving essay introductions.
- Making speeches easier to deliver.
- Revising reaction papers for clarity.
Related checks
- Sentence Counter
- Readability Checker
- Grammar Tips
- Active Voice
Sentence Length Checker FAQ
Are long sentences always bad?
No. A long sentence can work if it is clear. The tool highlights them so you can decide.
What is a good sentence length?
Many student drafts are easier to read when average sentence length stays around 15 to 22 words.
How do I shorten a sentence?
Remove filler words, split separate ideas, and replace vague phrases with direct wording.