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Marketing & SEO Medium #ad-rank#formula

Ad Rank Formula

Bid x quality score x extension impact x context = ad rank. The full formula laid out.

A free, animated ad rank formula you can read here or embed on any website, from Scrollchart.

Ad Rank Formula

Ad Rank FormulaBid × Quality Score × Extension Impact × Auction Context determines position and CPCAd Rank = Max Bid × Quality Score × Extension Impact × Auction ContextMax Bid$4.20Your ceiling CPCQuality Score8 / 10CTR + relevance + pageExtension Impact1.15xSitelinks, calloutsAuction Context1.08xDevice, location, time×××Ad Rank41.7sampleCPC = (rank below / QS) + $0.01Diminishing returnsabove 2x competitorHighest leverage.1 pt QS = 10-16% CPC cut5-10 active extensionsadd up to 15% rank liftPer-auction signal.Varies device + locationSample auction: Ad Rank thresholdsPosition 141.7 (you)Position 226Position 318.5Position 412QS from 5 to 8 raises Ad Rank 60% with no bid change and cuts actual CPC by up to 37%

The four inputs to ad rank visualized as multiplicative factors flowing into a final score. Sample numbers shown.

Good for

  • Google Ads onboarding guides explaining why bidding more does not always improve position
  • Quality Score improvement articles showing the compound leverage of QS across the Ad Rank formula
  • Ad extension strategy guides quantifying the rank and CTR benefit of active extension types

Source & accuracy

This ad rank formula is an editorial illustration built to represent the concept accurately. Where it shows figures, they are typical or representative values chosen to make the relationship clear, not a single underlying dataset. The diagram and its explainer are reviewed and maintained centrally, and updated over time as understanding improves.

Components of Ad Rank

Ad Rank is the value Google Ads computes to decide whether an ad shows and in what position. It combines the advertiser's bid, the ad and landing-page quality (summarized in Quality Score from expected click-through rate, ad relevance, and landing-page experience), the Ad Rank thresholds, the context of the search (device, location, time, query intent), and the expected impact of ad extensions and other formats.

Why a low bid can still win

Because quality and expected extension impact multiply into the calculation, a high-quality ad can outrank a higher-bidding competitor while paying less per click. The actual cost per click is derived from the Ad Rank of the advertiser below you divided by your own Quality Score, plus a small increment, which is why improving relevance lowers price as well as raising position. The context term means Ad Rank is recomputed at every auction, so the same ad can rank differently for different users and queries.

Embed this diagram

Add this animated ad rank formula to your own site. Copy one line of HTML, or use the embed builder for theme and sizing options.

Reference

What this is
A free, embeddable, animated ad rank formula for any website.
Who uses it
SaaS marketing blogs.
How to embed
Copy one line of HTML. No signup. No watermark. Works in WordPress, Webflow, Ghost, Substack, plain HTML.
File size
iframe embed, ~80 KB gzipped (loads on demand, does not block your page paint).
License
Free forever. Editorial explainer text included; updated centrally over time.
URL
scrollchart.com/diagram/ad-rank-formula

Embed format options

Copy the universal HTML snippet, the WordPress shortcode, or an iframe fallback - see the WordPress plugin page for details. Any format keeps the same Core Web Vitals profile and the same explainer text.

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By embedding, you acknowledge the diagram and explainer text are served from scrollchart.com and may be updated from time to time to reflect new research or to link to relevant sources within the explainer.

Frequently asked questions

Where can I get a free animated "Ad Rank Formula" for my website?
Scrollchart provides "Ad Rank Formula" as a free, embeddable animated diagram you can add to any website with one line of HTML. No signup is required and there is no watermark. The diagram and its explainer text are served from scrollchart.com, so the embed stays current without any maintenance on your end.
How do I embed a ad rank formula in WordPress or a static site?
Paste the HTML snippet from the Scrollchart diagram page into your WordPress post (in HTML/code view), your Webflow embed block, or directly into a static HTML file. No plugin is needed. The diagram loads from scrollchart.com and paints in as the reader scrolls.
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