Count sentences in your text with average length, longest and shortest sentence analysis. Free online sentence counter tool.
The sentence counter analyzes your text and provides comprehensive sentence statistics including total sentence count, average sentence length (in words), the longest sentence, and the shortest sentence. This is useful for improving writing readability, checking academic requirements, and optimizing content for different audiences.
Average Sentence Length = Total Words ÷ Total SentencesThe average sentence length is calculated by dividing the total word count by the number of sentences. Research suggests that an average sentence length of 15-20 words is optimal for readability. Sentences over 30 words may be difficult to follow, while those under 10 words may feel choppy.
| Input | Output |
|---|---|
| The cat sat. The dog ran. The bird flew away. | 3 sentences | Avg: 4.0 words | Longest: "The bird flew away." (4 words) | Shortest: "The cat sat." (3 words) |
| Hello world! How are you? I am fine. | 3 sentences | Avg: 2.7 words |
| This is a longer sentence with many words. Short one. | 2 sentences | Avg: 6.5 words |