Keyword density is simply how often a word or phrase appears in your content, compared with the total number of words. If your target keyword appears 10 times in a 1,000-word article, its density is 1%.
Density is not a ranking trick. Google has moved far past simple word-counting, and there is no official “correct” density. But density is still a useful check: it catches the two mistakes writers make most — forgetting to mention their topic at all, and repeating one phrase so often it reads like spam.
The formula (with a worked example)
Density = (times your keyword appears ÷ total words) × 100
Example: a 1,000-word guide uses the phrase “email marketing” 12 times. 12 ÷ 1,000 × 100 = 1.2% density.
Count every exact appearance — including the title and headings — and use your real word count, not a guess. That is the whole calculation; everything else is judgement about what the number means.
How much is enough? A simple table
There is no number Google requires, but as a practical guideline most writers stay in this range:
| Article length | 1% density | 2% density | 3% density |
|---|---|---|---|
| 500 words | 5 mentions | 10 mentions | 15 mentions |
| 1,000 words | 10 mentions | 20 mentions | 30 mentions |
| 2,000 words | 20 mentions | 40 mentions | 60 mentions |
Read the table this way: on a 1,000-word post, 10–20 mentions of your main keyword is a comfortable range. Below 0.5% (5 mentions in 1,000 words), the page may not clearly signal its topic. Above 3–4%, the repetition usually starts to feel unnatural to a human reader — that is the point where experienced writers get cautious.
One more thing to remember: density works the same way for phrases as for single words. A two-word phrase like “email marketing” counts only each time the full phrase appears — the word “email” on its own does not count toward it. That is why checking two-word phrases matters: it catches repeated phrases that a single-word count misses completely.
Placement matters more than the number
A keyword in the right places does more work than ten extra mentions buried in the middle of the page. Make sure your main keyword appears in:
- The title tag — the strongest single placement.
- The first 100 words — so readers and search engines know the topic immediately.
- One or two headings — where it fits naturally, not forced into every heading.
- The conclusion — a natural place to restate the topic.
If those four spots are covered, the exact percentage matters far less than it used to.
Too high? How to fix it
Say your 800-word draft mentions “best budget laptops” 28 times — that is 3.5%, and it reads like a broken record. Fix it without deleting content:
- Before: “The best budget laptops for students are the best budget laptops for everyday use, and the best budget laptops for travel are light.”
- After: “These laptops work well for students, everyday use, and travel — and most of them are light enough to carry daily.”
- What changed: three repeats became pronouns and synonyms (“these laptops”, “them”). The topic is still clear; the repetition is gone.
General rule: replace repeats with “it”, “they”, “this guide”, or a close synonym, and only keep the exact phrase where it genuinely helps the reader.
Too low? How to fix it
If your keyword barely appears, do not sprinkle it randomly through the text. Add it where it belongs: the introduction, one subheading, and the final paragraph. If you cannot add it naturally in those places, the page may be about a different topic than you thought — and that is useful information too.
Checklist before you publish
- ☐ Main keyword density roughly 1–2% (never chase an exact number)
- ☐ Keyword in the title, first 100 words, and at least one heading
- ☐ No sentence repeats the same phrase twice
- ☐ Synonyms and related terms used naturally
- ☐ Read the page aloud — if a phrase sounds repeated, it is
Check your own page
Paste your finished draft into the free Keyword Density Checker and look at your top words and phrases. If your main keyword sits around 1–2% and nothing else looks oddly repeated, you are done — no further tweaking needed.