Sentence Counter
Sentence Counter gives a punctuation-based estimate of sentence count.
Example: sentence counter
One. Two!
2 sentences (estimate)
How to use this tool
- Paste the passage.
- Run Sentence Counter.
- Review abbreviations and unusual punctuation before relying on the estimate.
How the result is made
The tool looks for nonblank spans ending with a period, question mark, or exclamation point and counts those spans. “One. Two!” returns two sentences. It can also count a final span without terminal punctuation. The output explicitly labels the value an estimate.
When to use it
Use it for a quick structure check in a draft or to compare short versions of a paragraph. Word Counter and Paragraph and Line Counter measure different units. Reverse Sentences uses a related simple punctuation scan but actually reorders detected pieces.
Details to check
Abbreviations, initials, decimals, ellipses, and quoted punctuation can confuse a regular-expression sentence estimate. The tool does not understand grammar or language-specific sentence boundaries. For formal analysis, manually inspect difficult cases and use a suitable sentence segmenter.
Questions people ask
Is the number exact?
No. It is explicitly a pattern-based estimate.
Will a final phrase without a period count?
The pattern can count a final nonblank span.
Why is a decimal counted oddly?
A period can be interpreted as a sentence boundary.