Sentence Counter

Count sentences, see average length, and find the longest ones.

Your text

Draft kept on this device
Sentences
0
Avg words
0
Longest
0
Words
0
Unique words
0
Characters
0
Characters without spaces
0
UTF-8 bytes
0
Sentences
0
Paragraphs
0
Lines
0
Average word length
–
Average sentence
–
Reading time (238 wpm)
0 sec
Speaking time (150 wpm)
0 sec
Readability (Flesch)
–
Grade level
–
Runs on this device. Nothing is uploaded.
Sentence lengths appear here once there is some text.

About the Sentence Counter

A sentence count on its own says little. What helps is knowing which sentences run long. This counter shows how many sentences you have, their average length, how they spread from short to very long, and the five longest, so you know where to cut.

How to use it

  1. Paste your text.
  2. See the sentence count and average length.
  3. Read the longest sentences list and split the ones over 30 words.

Example

Input
Short one. This second sentence is a little longer than the first.
Result
2 sentences · average 6.5 words · longest 11 words

Questions

How does it know where a sentence ends?

It uses your browser's sentence breaker, which knows that a full stop in Mr. or 3.5 does not end a sentence. A blank line also ends a sentence, so headings and list items are counted separately.

What is a good average sentence length?

For general readers, 15 to 20 words is a common target. Mixing short and long sentences reads better than holding one length. The length breakdown shows your mix.

Does it work for languages other than English?

Yes. Sentence breaking works for most languages, including Chinese and Japanese full stops (。). The readability score is the only part that is English-only.

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