Sentence Count
Derive average sentence length and reading time from words and sentences.
About Sentence Count
Dividing total words by the number of sentences yields the average sentence length, a core readability input. The paragraph figure assumes a common 100-word paragraph for a rough count. Average sentence length is the fastest readability signal, and unusually long sentences are the usual culprit behind tiring prose.
Formula
Sentence Count
Average sentence length = words / sentences
- paragraph estimate
- Assumes roughly 100 words per paragraph
Worked example
With the default values below, Sentence Count returns Words per Sentence of 20.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Wordsminimum 1
- 500
- Sentencesminimum 1
- 25
Results
- Words per Sentence
- 20.0
- Paragraph Estimate
- 5
- Reading Time
- 2.2 min
Step by step
- 1Values used
- 2Sentence Count
- 3Words per Sentence= 20.0
- 4Paragraph Estimate= 5
- 5Reading Time= 2.2 min
Assumptions and limits
- The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Sentence Count calculated?
Average sentence length = words / sentences Dividing total words by the number of sentences yields the average sentence length, a core readability input. The paragraph figure assumes a common 100-word paragraph for a rough count.
Why does Sentence Count matter?
Average sentence length is the fastest readability signal, and unusually long sentences are the usual culprit behind tiring prose.
What values do I need to enter?
This calculator takes 2 inputs: Words, Sentences. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.