What it means
Traffic per query is an estimate of how much traffic a single query sends you, based on its search volume and the clicks you actually capture at your rank and SERP layout. You use it to turn a flat list of queries into a weighted view of value: Query share and the payoff of covering a topic depend on the traffic each query brings, not the count of queries you rank for.
Why it matters
Ranking for a query is not the same as getting traffic from it. Zero-click results, SERP Features, and AI Overviews (AIOs) cut the clicks a query sends, so 2 pages at the same position can earn very different traffic. Kevin's Featured Snippet case study showed traffic climbing 17% on mobile and 21% on desktop while rankings stayed flat. Weighting coverage by traffic per query stops you from investing in queries that rank but do not pay.
Say a mid-market B2B SaaS company ranks in the top 3 for 500 topic queries. A traffic-per-query estimate shows the top 50 queries drive 80% of clicks, while 200 long-tail queries send almost none because AIOs answer them. The team moves budget from more long-tail coverage to defending the 50 queries that pay, and organic clicks hold flat even as query count drops.
How to use this knowledge
Estimate traffic per query as search volume times an expected click-through rate that reflects your rank and the SERP Features present. Weight query share and topical coverage by traffic per query, so a big count of low-traffic queries does not inflate perceived value. Recheck it as SERPs change, since zero-click features and AIOs can drop traffic per query even when your rank holds. In ROI cases, narrow traffic predictions to the queries and page templates that actually move.
Growth Memo guidance
The more results Google shows, the more they're clicked. — What 20,000 keywords say about Google’s first page
Our FS traffic started to pick up (mobile: +17%, desktop: +21%) even though our rankings stayed flat. — A case study of 2,000 Featured Snippets about deduplicating
Short-head keyword demand is in permanent decline and likely contributing to slowed traffic growth or decline. — The Great Decoupling
Query share — the metric traffic per query feeds; your slice of a topic's total available traffic.
Zero-click searches — queries where SERP Features answer on the page and traffic per query falls to near zero.
Click-through rate — the multiplier that turns a query's search volume into a traffic estimate.
Topical authority — broad coverage only pays when the covered queries carry real traffic per query.
SERP coverage — breadth across queries that you weight by traffic per query to judge its worth.