What keyword density measures
Keyword density is the share of total words that a term accounts for. A 1,000-word article using a phrase 12 times has a 1.2% density. Search engines no longer reward a specific ratio, but density is still a useful editing signal.
A workable range
Aim for 0.5–2% for your primary term and let related terms appear naturally. Anything above 3% usually reads as repetitive to humans, which is the real cost.
Check it in seconds
The keyword density panel in the writing tools filters out common stop words so you see the terms that actually characterize your draft, along with their percentage share.