Word Count, Readability, and Content Metrics

Word Count, Readability, and Content Metrics

Understanding content metrics helps you write better documentation, blog posts, and UI copy. Word count is just the beginning.

Basic Metrics

Word Count

Sounds simple, but edge cases exist: hyphenated words (one or two?), contractions, URLs, code blocks. Most counters split on whitespace and treat each token as a word.

Character Count

With and without spaces. Important for SMS (160 chars), tweets (280 chars), meta descriptions (155 chars), and title tags (60 chars).

Sentence Count

Split on period, exclamation, and question marks. Watch for abbreviations (Dr., U.S.A.) that aren't sentence boundaries.

Paragraph Count

Count blocks of text separated by blank lines.

Reading Time

The standard formula: words ÷ 200-250 WPM = reading time.

Technical content reads slower (~150 WPM). Casual content reads faster (~275 WPM). Medium.com uses 275 WPM.

function readingTime(text, wpm = 230) {
  const words = text.trim().split(/\s+/).length;
  const minutes = Math.ceil(words / wpm);
  return minutes;
}

Readability Scores

Flesch Reading Ease

Score from 0-100. Higher = easier to read.

| Score | Level |

|-------|-------|

| 90-100 | 5th grade |

| 60-70 | 8th-9th grade |

| 30-50 | College |

| 0-30 | Professional |

Technical docs should aim for 40-60. Blog posts should aim for 60-70.

Flesch-Kincaid Grade Level

Outputs a U.S. school grade level. Target grade 8-10 for general technical writing.

SEO Content Guidelines

Title tags — 50-60 characters for full display in search results. Meta descriptions — 150-160 characters. Include the primary keyword. H1 headings — one per page, under 70 characters. Content length — blog posts targeting search traffic should be 1,500-2,500 words minimum. Keyword density — 1-2% is natural. Higher feels spammy.

Try It

Use our Word & Character Counter to get instant metrics including word count, character count, sentences, paragraphs, reading time, and keyword density analysis.

Conclusion

Good writing is measurable. Track reading time, aim for appropriate readability scores, and respect character limits for SEO elements. Let metrics guide revision, not first drafts.