Sentence Counter

We split on terminal punctuation: a period, question mark, exclamation point, or ellipsis followed by whitespace or end of text. So "This is one sentence. This is another." counts as two.

Imperfectly. A naive splitter treats every period as a sentence boundary, which over-counts in text with abbreviations. We try to be generous about runs of consecutive terminators (like "...") but won't catch every case. Spot-check long, abbreviation-heavy text by eye.

For most general writing, 15–20 words is comfortable. Plain-language guidelines (used by government and healthcare publications) often recommend 14 or fewer. Higher averages aren't wrong, but consistently long sentences tire readers — vary the length.

Word processors use slightly different splitters and may treat headings, bullets, or trailing newlines differently. The sentence count here is based on terminator punctuation in the visible text. If you're optimizing for a specific tool's metric, copy the result from that tool directly.