Key Takeaways
Google Ads in the UK typically cost between £0.20 and £15 per click depending on the sector, and most businesses should budget £500 to £1,500 a month in ad spend before a campaign has enough data to optimise.
- Budget £500 to £1,500 per month in ad spend as a realistic floor. Below roughly £100 a month a campaign cannot gather enough data to optimise.
- Typical UK cost per click: £0.20 to £1.50 ecommerce, £0.80 to £4 local services, £1.50 to £6 trades, and £3 to £15 or more for legal and financial.
- Cost per conversion is the number that matters, not CPC. £10 to £50 is broadly typical for lead generation; judge it against what a customer is worth to you.
- A ROAS of 4x to 8x is solid for ecommerce. Lead generation is better measured by cost per lead against lead value.
- Agency management fees are separate from ad spend and sit on top of it, typically 10 to 20% of spend or a fixed monthly fee.
- Two accounts on the same budget can perform completely differently. Quality Score, account structure and the landing page decide which one wins.
Do you want to start running Google Ads? The most common question we get is "How much do Google Ads actually cost?"
Annoyingly, the honest answer is that it depends. But that is not a cop-out. It depends on things that are knowable and measurable.
Once you understand what drives Google Ads costs, you can evaluate how much you should spend, what you should get in return, and whether the campaign is performing as it should.
This guide breaks down how Google Ads pricing works in the UK, what the numbers typically look like across different sectors, and what actually determines whether your spend delivers a return.
How Google Ads Charges You
Google Ads operates on an auction model.
Every time someone performs a search, Google runs an instant auction to determine which ads appear and in what order. You do not pay a flat fee to appear. You bid for placement, and you pay only when someone clicks your ad.
That is the Pay-Per-Click model, and it means your spend is directly tied to the traffic you receive. This sounds efficient, but it also means the cost of running a campaign is determined by competition.
The three numbers that matter most are Cost Per Click, Cost Per Conversion, and Return on Ad Spend. We will take each in turn.
Cost Per Click: What You Pay Every Time Someone Clicks
CPC is the most quoted number in Google Ads conversations, and also the most misunderstood.
Your CPC is not fixed. It varies by keyword, competitor activity, time of day, device, ad quality, and a dozen other factors. It is the outcome of an auction, not a price tag.
That said, here are realistic CPC ranges for common UK sectors.
Legal and financial services sit at the expensive end. CPCs of £3 to £15 or more are common for competitive terms like "personal injury solicitor" or "financial advisor near me". These are industries where a single client is worth thousands of pounds, so businesses will bid aggressively.
Home improvement trades tend to run between £1.50 and £6 depending on the keyword and location. "Emergency boiler repair" in London will cost more than "garden fencing installer" in a smaller market.
Boatswain Joinery, a family joinery firm we work with, shows what those numbers look like in practice. On a monthly budget of £300 their campaign brings in leads at £11.84 each, and it has kept them booked through 2026. A trade campaign does not need a large budget to work. It needs the right keywords and a page that converts the clicks it pays for.
Healthcare and aesthetics keywords range considerably. GP and dentist terms can sit between £1 and £4; cosmetic and aesthetic terms often run higher.
Ecommerce tends to be more efficient. Product-specific searches can come in at £0.20 to £1.50. The specificity of the search reduces competition and increases buyer intent.
Local service businesses typically see CPCs between £0.80 and £4, with emergency and urgent service terms at the higher end.
Our own Toolmix campaigns achieved an average CPC of £0.43 across 3,570 clicks in a single month. That is not typical for all sectors, but it demonstrates what is achievable in ecommerce with well-structured Shopping campaigns and tightly targeted product-level bidding.
The number to watch is what your CPC should be given your industry and the intent level of the searches you are targeting.
What Determines Your CPC?
Three things primarily drive what you pay per click: competition, Quality Score, and keyword intent.
Competition is straightforward. The more advertisers bidding on a keyword, the higher the price. "Solicitor near me" is expensive because hundreds of law firms are competing for it. "Bespoke oak furniture Yorkshire" is cheaper because fewer businesses are in the auction.
Quality Score is Google's rating of your ad's relevance and likely performance, scored out of ten. It takes into account how relevant your ad copy is to the search term, how likely someone is to click it, and how good the experience is on the page you send people to.
A high Quality Score can reduce your effective CPC, because Google rewards relevance with cheaper clicks. A low Quality Score inflates your costs and limits where your ads appear.
This is one reason a well-managed account consistently outperforms a poorly managed one at the same budget level. Better ad copy, targeting and landing pages all feed into Quality Score and drive the cost down.
Google Ads quality score discounts
| Quality Score | Discount on CPC |
| 10/10 | 50% discount on cost per click |
| 9/10 | 44% discount on cost per click |
| 8/10 | 37% discount on cost per click |
| 7/10 | 29% discount on cost per click |
| 6/10 | 17% discount on cost per click |
| 5/10 | You pay average CPC |
| 4/10 | 25% increase in cost per click |
| 3/10 | 67% increase in cost per click |
| 2/10 | 150% increase in cost per click |
| 1/10 | 400% increase in cost per click |
Keyword intent matters because not all searches carry the same commercial value. Someone searching "how to fix a boiler" is researching. Someone searching "boiler repair Manchester emergency" has their debit card out and ready for action.
Google's auction reflects that. High-intent, transactional keywords cost more because they convert, and the conversion economics often justify the higher CPC.
Cost Per Conversion: The Number That Actually Matters
Cost per conversion tells you what each customer costs.
This is the number your campaign should ultimately be evaluated against, because it is the one connected to your business outcome. A £3 CPC might sound expensive, but if one in three clicks converts into a £500 job, your cost per conversion is £9 and the economics are excellent.
UK benchmarks for cost per conversion vary enormously.
For lead generation businesses, a cost per conversion of £10 to £50 is broadly typical, with competitive sectors pushing higher. If you are a solicitor generating consultation bookings, a £60 cost per lead that becomes a £2,000 client is excellent. If you are a window cleaner and a lead is worth £80 per year, a £40 cost per conversion is marginal.
For ecommerce, cost per conversion depends entirely on average order value and margin. Our Toolmix campaigns delivered a cost per conversion of £10.67 in a single month. Against a product range where most items sell between £30 and £250, the campaign returned more than thirteen times the spend.
That relationship between cost per conversion and product value is what matters.
For service businesses where the lifetime value of a customer is high, a higher cost per conversion can still be a strong result. Always think: what is a customer worth, and what are you paying to acquire one?
Return on Ad Spend: The Efficiency Measure
ROAS is the simplest measure of campaign efficiency. For every £1 you spend on ads, how many pounds come back in revenue?
A ROAS of 3x, also written as 300%, means every £1 spent returned £3 in revenue. A ROAS of 10x means every £1 returned £10.
What counts as a good ROAS depends on your margins. A business selling products at 70% gross margin can sustain a lower ROAS than one operating at 20%.
The general rule of thumb for eCommerce is that a ROAS of 4x to 8x represents solid performance, with well-optimised campaigns in the right categories pushing significantly higher.
Our Toolmix Google Shopping campaign achieved a ROAS of 1,353%, more than thirteen times the money in versus revenue out. That is exceptional, and it shows how the compound effect of clean product data, tight campaign structure and active bid management works in a category with high-intent customers.
Here are the results for the Toolmix campaign with a £1,500 advertising spend:
For businesses where revenue per conversion is not directly trackable in the ads platform, ROAS is replaced by cost per lead and lead-to-client conversion rate. The principle is the same, but the measurement requires a bit more work to connect through to actual revenue.
How Much Should You Actually Spend?
There is no universal answer, but there are sensible principles.
Your minimum viable budget is the amount at which the campaign can gather enough data to optimise. An account spending £100 per month will accumulate clicks and conversions so slowly that meaningful optimisation is nearly impossible. The algorithm needs conversion data to improve, and it cannot get that on a trickle of spend.
Here's an example of a campaign with a slow start, then the campaign budget was turned up just a little and the spike in performance was immediate:
For most UK businesses, a starting budget of £500 to £1,500 per month in ad spend is a realistic floor for a campaign that can be properly tested and managed. Competitive sectors may need significantly more to appear for the terms that matter.
The second principle is that the budget should follow performance. If your campaign is returning a strong ROAS and your cost per conversion is below your target, the right move is usually to increase spend. If it is not performing, more budget will not fix a structural problem: the campaign needs attention first.
What do PPC agencies charge to manage a campaign?
The third principle is that management cost is separate from ad spend. Most agencies charge either a percentage of ad spend, typically 10 to 20%, or a fixed monthly management fee. That cost should factor into your total budget planning. Here are example costs depending on your ad spend budget:
| Ad Spend | Management Fee | Total |
| up to £1,000 | £500 | £600 - £1,500 |
| £3,000 | £900 | £3,900 |
| £6,000 | £1,700 | £7,700 |
| £9,000 | £2,500 | £11,500 |
A well-managed campaign should comfortably justify its management fee through improved efficiency, compared to an unmanaged or poorly managed account.
Why Two Accounts at the Same Budget Perform Differently
Two businesses in the same sector, spending the same monthly budget, can see wildly different results. One gets a cost per conversion of £12, the other £80. Both are using Google Ads, and both are paying the same CPCs in the same auction.
The difference is almost always in the account structure, targeting, ad copy, and the landing page.
Landing pages that do not match the ad, load slowly, or fail to give the visitor a clear next action convert at a fraction of what a well-built dedicated page achieves.
The Gentle Mind, one of our PPC clients, converted at 7.42% on a dedicated landing page against an industry average of 2 to 3%. That difference in conversion rate feeds straight through to cost per lead: if you are converting twice as many clicks, your effective cost per conversion halves.
The platform sets the price of a click. What you build around it is the variable that actually determines the return.
What Good Looks Like
To give you something concrete to benchmark against, here is what properly managed Google Ads campaigns tend to look like in practice.
Click-through rates above 5% on Search campaigns suggest the ad copy is well matched to the search terms. Rates below 2% often indicate a targeting or creative problem.
Conversion rates of 3% and above on a dedicated landing page are achievable for most service businesses. Ecommerce conversion rates vary more widely, but 2% to 4% is a reasonable benchmark for Shopping campaigns.
Cost per conversion should be evaluated against customer lifetime value, not in isolation. If a £30 cost per lead produces a £1,500 job at a 40% margin, that is a strong result. The benchmark is relative to your business model, not a universal number.
ROAS of 4x or higher is a reasonable target for ecommerce. Lead generation campaigns are better measured by cost per lead against lead value.
Quality Scores of 7 out of 10 or above across your main keywords indicate a well-structured account. Scores of 4 or below suggest significant room for improvement in targeting, ad copy, or landing page relevance.
The Bottom Line
Google Ads can be one of the most efficient customer acquisition channels available to a UK business, or one of the most expensive ways to generate very little.
The difference is not the platform. It is the structure, the management, and the connection between the ads and what happens after the click.
CPC figures give you a starting point for budget planning. Cost per conversion tells you whether the campaign is working. ROAS tells you the overall efficiency of the spend. Quality Score tells you whether the fundamentals of the account are sound.
If you are spending money on Google Ads and not tracking all of them, you do not have enough information to know whether your investment is performing, or where the leak is.
Want to Start Making Profit Through Google Ads?
If you would like a straight answer on what Google Ads should cost for your specific business, and what a properly managed campaign could return, let's talk.
Get in touch with the CreateTheWeb team about Google Ads management and start running campaigns before your competitors do.
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