What Is Google Ads Quality Score and How Is It Calculated?

Google Ads Quality Score is a diagnostic rating from 1 to 10, shown at the keyword level, that estimates how relevant and useful your ad is compared with other advertisers. Google builds it from three things — your expected click-through rate, your ad relevance, and your landing page experience — and a higher score usually means a lower cost per click.

That one-line answer is true, but it hides the part that actually changes your results: the 1-to-10 number you see in your account is a report card, not the thing the auction uses to rank your ad. Understand that distinction and you stop chasing a vanity metric and start fixing what really lowers your costs. If you are new to the platform, start with our walkthrough on Google Ads for beginners, then come back here, or go deeper with structured digital marketing training.

What does your Quality Score actually measure?

Quality Score is Google's own words a "diagnostic tool meant to give you a sense of how well your ad quality compares to other advertisers." It is measured on a scale from 1 to 10 and is available at the keyword level inside your Search campaigns. So when you add the Quality Score column to your keyword report, each keyword gets a single number that says, in effect, "here is how competitive your ad experience looks for this term."

The comparison is the important word. Your score is not graded against a fixed standard. It is calculated against other advertisers whose ads showed for the exact same search over the last 90 days. That is why the same keyword can score 7 in one account and 4 in another, and why a score can drift even when you change nothing — the competitive field around you moved.

Alongside the 1-to-10 number, Google shows a status for each of the three components: "Above average," "Average," or "Below average." These three statuses are the most useful part of the whole feature, because they tell you which lever to pull. A keyword sitting at 4/10 with "Below average" landing page experience is a completely different fix from a 4/10 with "Below average" expected CTR. The number tells you there is a problem; the statuses tell you where it lives.

One more framing that saves beginners a lot of worry: a brand-new keyword often shows a Quality Score of "—" or a placeholder until it gathers enough impressions. That is not a bad score. It simply means Google does not yet have the data to rate you, and it will populate once your ad has served for the term a few times.

It also helps to know what Quality Score is not. It is not a measure of how much you spend, how long your account has existed, or how large your business is. A small advertiser with a tightly written ad and a fast, relevant page can out-score a national brand on the same keyword. Nor is it a single company-wide grade — every keyword carries its own score, so a well-built "digital marketing course" keyword can sit at 9 while a sloppy, over-broad "marketing" keyword in the same account languishes at 3. Reading it keyword by keyword, rather than as one account health number, is what turns the metric from decoration into a to-do list.

How is Google Ads Quality Score calculated from its three parts?

Google is deliberately clear about the three ingredients, and deliberately vague about the recipe. The three components are fixed and publicly defined; the exact weighting Google applies to combine them into your 1-to-10 is not published. Industry analysts who reverse-engineer accounts generally observe that expected click-through rate and landing page experience tend to carry the most influence, with ad relevance mattering but usually less — but treat that as a working assumption, not a Google number.

1. Expected click-through rate (CTR)

Google defines this as "the likelihood that your ad will be clicked when shown." It is a prediction, stripped of the effects of ad position and format, of how tempting your ad is for that keyword. You raise it by writing ads that genuinely match the searcher's words — using the keyword in the headline, leading with a specific benefit, and testing sharper calls to action.

2. Ad relevance

This is "how closely your ad matches the intent behind a user's search." A "Below average" here almost always means your ad groups are too broad — dozens of loosely related keywords sharing one generic ad. The fix is tighter ad groups: fewer, closely themed keywords per group, each with ad copy written for that theme.

3. Landing page experience

Defined as "how relevant and useful your landing page is to people who click your ad." Google looks at relevance, transparency, ease of navigation and load speed, especially on mobile. If you send "ACCA course fees" traffic to a generic homepage, expect a "Below average." Our guide to landing page conversion rate optimisation covers the same fixes that also lift this component.

Source: Google Ads Help (component definitions), 2026; improvement tactics per standard practice.

How does Quality Score lower your cost per click?

Here is the nuance that most blog posts get wrong, straight from Google: "Quality Score is not an input in the ad auction." The 1-to-10 number is a diagnostic you read after the fact. What the auction actually uses is a real-time assessment of your ad and landing page quality, calculated fresh every time someone searches. Your Quality Score is a reliable mirror of that quality — which is exactly why improving the score improves your auction outcomes — but the two are not literally the same figure.

The place quality shows up is Ad Rank, the value that decides whether your ad appears and in what position. Ad Rank combines your bid, the real-time quality of your ad and landing page, the Ad Rank thresholds, the context of the search, and the expected impact of your assets and formats. Because quality is a multiplier in that mix, a more relevant advertiser can win a higher position and pay less than a competitor who simply bids more. Higher ad quality can let you hold the same position while paying a lower cost per click.

How big is the effect? Google does not publish a discount table, and anyone who quotes an exact percentage as a guarantee is overstating it. Industry analyses have long observed the direction clearly: the stronger your quality, the less you tend to pay for the same visibility. The illustration below shows that relationship — the numbers are made up for teaching, but the shape is what you should expect.

In practice this means two advertisers can bid the identical amount and pay very different prices. The one whose ad and page genuinely answer the search earns a quality advantage, and that advantage is handed back as cheaper clicks or better placement. For a course business running on a tight budget, that gap is the difference between a profitable campaign and one you switch off. If you are tracking the economics, pair this with our breakdown of the digital marketing metrics that matter — CTR, CPC, ROAS and CAC.

Why your Quality Score looks wrong (common mistakes)

Most frustration with Quality Score comes from misreading what it is for. Watch for these traps:

• Chasing the number instead of the statuses. A 6/10 with all three components "Average" is healthy. Obsessing over pushing it to 10 wastes time; fix "Below average" components and let the number follow.
• Assuming the score feeds the auction directly. It does not — it is a diagnostic. The real-time quality calculated at auction is what moves your costs, so judge success by CPC and conversions, not by the 1-to-10 alone.
• Blaming the ad when the landing page is the problem. A great ad pointed at a slow, off-topic page will cap your score. The page is half the equation.
• Panicking over a new keyword's blank score. "—" means not enough data yet, not failure. Let it serve.
• Over-broad ad groups. One ad trying to be relevant to thirty different keywords is the single most common cause of "Below average" ad relevance.

What to do next

Treat Quality Score as a weekly diagnostic, not a scoreboard. Add the Quality Score column and the three component columns to your keyword view, sort by the keywords spending the most money, and fix the weakest component first — usually ad relevance (tighten the ad group) or landing page experience (match the page to the ad). Re-check after the account has gathered a week or two of fresh impressions, because the score always reflects a rolling comparison.

Doing this well is a core, hireable skill. NIFM has trained learners in financial markets and digital skills since 2012, with bilingual Hindi-and-English teaching on live campaigns rather than slide theory. If you want to build and run real Google Ads campaigns end to end, our programme takes you from account setup to Quality Score optimisation.

Frequently Asked Questions

What is a good Google Ads Quality Score?

A score of 7 or above is generally considered strong, 5 to 6 is workable, and anything consistently at 4 or below signals a component that needs fixing. But because the score is relative to competitors over the last 90 days, treat the component statuses as the real target rather than any single threshold.

How often does Quality Score update?

It updates continuously as your ads gather impressions and clicks, always reflecting a rolling comparison with other advertisers who showed for the same searches over roughly the previous 90 days. A change you make today can take days of fresh data before the score moves.

Does Quality Score affect how much I pay per click?

Indirectly, yes. The 1-to-10 figure itself is a diagnostic and is not used in the auction, but it mirrors the real-time ad quality that does feed Ad Rank. Stronger quality lets you hold a position while paying a lower cost per click, so improving the components that drive your score typically lowers your CPC.

Why is my Quality Score low even with a high click-through rate?

A high CTR only helps the expected-CTR component. If your ad relevance or landing page experience is rated "Below average," the overall score stays capped. Check all three statuses, not just clicks, and fix whichever reads "Below average."

Is Quality Score the same on Display and YouTube campaigns?

No. The 1-to-10 keyword-level Quality Score described here applies to Search campaigns. Display, Video and other campaign types use their own quality signals, so you will not see this exact metric at the keyword level there.