SEO Keyword Density Calculator
Compute keyword density by word count and by character count for a piece of content, with the 1–3% sweet spot callout.
How to Use the SEO Keyword Density Calculator
- Enter total word and character counts of the content.
- Enter how many times the keyword appears and its length.
- Click Calculate to see both density metrics.
使用例
- •Content audits.
- •Writing SEO briefs.
- •Checking rewrites against a target keyword.
計算式
Density by words = keyword_count / total_words × 100. Density by characters = keyword_count × keyword_length / total_chars × 100.
よくある質問
Does density still matter in 2026?
Much less than in the early 2010s — modern search engines use semantic models. Keep density natural (1–3%) and focus on intent match instead.
Word- or character-based density?
Word-based is the most common definition. Character-based matters for languages with long compound words (German, Finnish, Russian).
Should I aim for the exact sweet spot?
No. Write for the reader, then check that you are not under 0.5% or over 4% — below or above that is a signal of either keyword stuffing or missing mentions.