Conversion rate vs click-through rate. Two different questions, one funnel.

I'm Lauren Pearson, and most founder-led teams I work with confuse these two numbers at some point, usually right after a paid campaign has technically "worked" by every click metric and still hasn't produced a single qualified enquiry. Click-through rate and conversion rate sit on opposite sides of the same click, but they answer completely different questions, and mixing them up is one of the fastest ways to draw the wrong conclusion from a funnel review.

What to look for. Two metrics, two different jobs.

Click-through rate (CTR) measures how many people who saw something, a search ad, a social post, an email subject line, went on to click it. The formula is clicks divided by impressions, multiplied by one hundred. CTR lives entirely before the click: it tells you whether your headline, image, offer or subject line earned attention against everyone else competing for the same eyeball.

Conversion rate (CVR) measures what happens after the click. The formula is completed actions divided by total visitors or sessions, multiplied by one hundred, and the "completed action" is whatever you have defined as success: a form submission, a demo booking, a purchase, a signed proposal. CVR lives entirely on your side of the click, the landing page, the offer, the checkout flow, or the sales process that follows it.

Neither number tells you anything useful on its own about the other stage. A strong CTR proves people wanted to know more. It says nothing about whether what they found once they clicked matched what they were promised or wanted to buy.

The options compared. Same funnel, different owners.

Those two figures come from WordStream's 2025 Google Ads Benchmarks report, which analyses live campaign data across more than twenty industries. Both vary considerably by sector: arts and entertainment or real estate ads regularly clear a 9 to 13 per cent CTR, while conversion rates for well-matched service categories such as auto repair can reach 14 to 15 per cent. The averages are a sense check against your own account history, not a target to chase in isolation, since a niche B2B search term and a broad consumer one will never behave the same way. See our full conversion rate optimisation approach for how we set realistic benchmarks by channel and sector rather than a single blanket number.

Which to choose and when. Use CTR to diagnose the ad, CVR to diagnose everything after it.

If the question is whether your ad copy, creative or subject line is doing its job, look at CTR against your own historical average and against the industry benchmark for your channel. A CTR that sits well below benchmark usually means the wrong audience is seeing the message, the wrong message is reaching the right audience, or a competitor's offer is simply more compelling in the same auction.

If the question is whether the traffic you are already paying for is turning into business, look at conversion rate. A weak CVR against a healthy CTR points at the landing page, the offer itself, page speed, a checkout step that asks for too much too soon, or a sales process that lets warm leads go cold. Improving the ad will not fix any of that; it will only send more people to fail at the same broken step.

The two numbers are most useful read together, not separately. Multiplying CTR by CVR gives the true conversion rate from impression to completed action, and that combined figure is the one that actually drives cost per acquisition. Our guide on how to calculate conversion rate walks through that maths in more detail, including where sessions, users and impressions get mixed up in the denominator.

The same logic applies outside paid media, even though the terminology shifts slightly. An organic search result's CTR, how often it earns a click against how often it appears in results, works exactly the same way as an ad's CTR, and Google Search Console reports it for every query a page ranks for. A page that ranks well but earns a weak CTR usually has a title or meta description problem worth fixing before touching anything else, since the page is being shown, it is simply not being chosen. Conversion rate on that same page still depends entirely on what happens after the click, so a content page with a strong organic CTR and no clear next step for the reader can rank well and still contribute nothing commercially.

How Lauren would decide. A single rule that saves most funnel audits a week of debate.

When I audit a funnel and see CTR at or above benchmark for the channel but CVR sitting well below it, I do not touch the ad first. That combination almost always means the promise made pre-click and the reality shown post-click have drifted apart, and no amount of extra ad spend fixes a page that is quietly disappointing the people it already convinced to click.

Picture a SaaS company running a search ad promising "free implementation support" that earns an above-average 8 per cent CTR, comfortably ahead of the 6.66 per cent benchmark. The same campaign converts at just 1.2 per cent, well under the 7.52 per cent cross-industry average. Before rewriting a single line of ad copy, I would check the landing page first, and in cases like this the page usually makes no mention of the free implementation support the ad led with at all. The fix is not a better ad. It is making the page say, in the first screen, exactly what the ad promised, so the person who clicked finds what they came for rather than having to hunt for it or, more often, leaving. Only once message and page genuinely agree does it make sense to look at rewriting the ad, tightening targeting, or testing a different channel; otherwise you are simply funding the same broken page's failure faster.

That is the order I use on every audit: fix agreement between promise and delivery first, then optimise volume. Reverse the order and you spend more to reach the same leak in the funnel.