What a good cost per lead looks like in the UK, industry by industry
A good cost per lead is not a market number you look up — it is a ratio you calculate from what a customer is worth to you and how many leads it takes to win one. This guide gives the formula, separates cost per lead from cost per acquisition, walks through what moves lead costs in the UK industries we work in, and is straight about why most published benchmark tables cannot be trusted.
The cost-per-lead formula, and what to count
Cost per lead is the simplest formula in paid marketing: cost per lead formula = total spend ÷ leads generated, over the same period. What makes it slippery in practice is the numerator's other half — cost per lead in digital marketing only means something once you have defined what a "lead" is. A form fill, a phone call, a booked appointment: pick one definition per account, and count each lead once.
There are also two honest versions of the resulting number. Platform CPL is media spend only — what the ad account itself reports — and it is the right number for judging a campaign. Fully loaded CPL adds the management fee on top, and it is the right number for judging a budget, because it is what a lead actually costs the business. This also answers what the cost per lead price is: there is no rate card, only whatever this division produces for your account.
CPL = spend ÷ leads · define the lead first · count it once
Cost per lead versus cost per acquisition
Cost per lead vs cost per acquisition is a distinction worth holding onto: CPL prices an enquiry, CPA prices a won customer. Cost per acquisition equals cost per lead divided by your lead-to-customer close rate.
| Cost per lead | Price of an enquiry — a form fill or a call. Rewards volume, hides quality. |
| Cost per acquisition | Price of a won customer — the number your margin actually pays. |
One conditional illustration, in GBP: if you close one lead in four, a £25 lead is a £100 acquisition. Cheap leads that never close are the expensive kind — always carry both numbers.
A good cost per lead is a ratio of job value, not a market number
What is a reasonable cost per lead, and how much does each lead cost? Reasonable means below your allowable cost per lead — a figure derived from your own economics, not from anyone's table. Work backwards: what a customer is worth to you, times the share of that you will spend to win one, times your close rate.
Search "what is a good cost per lead uk reddit" and the most upvoted answers say the same thing in fewer words — it depends on what a customer is worth to you. That is the correct answer; this section just shows the working.
A worked example
| Average job value | £3,000 |
| Acquisition allowance (10% of job value) | £300 per customer |
| Close rate | 1 in 3 leads |
| Allowable cost per lead | £100 |
A measured CPL of £60 against that £100 ceiling is a healthy account; £140 means the maths fails — fix the click price or the conversion rate before adding budget. All £ figures here are illustrative GBP arithmetic, not dataset values.
Set your own numbers
The worked-example table above doubles as a cost per lead calculator. It renders complete without JavaScript; where scripting is available, the table below recalculates as you type, so you can plug in your own figures.
| Job value (£) | |
| Acquisition allowance (%) | |
| Close rate (%) | |
| Monthly spend (£) — optional | |
| Leads per month — optional | |
| Allowable CPA | £300 |
| Allowable CPL | £100 |
| Measured CPL | — |
No JS? The static worked example above already shows the same arithmetic.
Why published UK benchmark tables mislead
Four failure modes recur in the CPL tables that circulate online. Most circulating tables are US-derived and repackaged for UK readers, currency unlabelled. "Lead" definitions differ table to table — enquiry, qualified lead and booked call get averaged together. Channels get mixed — search, social and bought lists produce incomparable CPLs. And the survey samples behind them are often small and self-selected.
There is a structural reason too: cost per lead is a derived number. CPL = cost per click ÷ landing-page conversion rate — and while the click price is a market fact you can measure, the conversion rate is a property of your landing page, not your industry. Averaging both into one "benchmark CPL" bakes a stranger's website into your target. So instead of printing CPL ranges we cannot stand behind, the industry section below publishes the input we can measure — the average cost per click UK advertisers actually pay, from live Google Ads data — and leaves the conversion side to your own account.
The honest way to get your own number is your own account data — spend ÷ leads — or a controlled test. A free PPC audit reports the live figure in writing.
Cost per lead by industry: what moves the number
Average cost per lead by industry UK is the biggest single CPL variable, because industry sets both the click price and the value of the job behind the lead. The third column below is deliberately the click price, not a CPL: your CPL is that click price divided by your own landing-page conversion rate, so publishing the measured input is honest where publishing a made-up output would not be. Divide the CPC by your conversion rate to see the CPL your account should produce.
| Industry | What moves CPL here | Avg CPC (UK) |
|---|---|---|
| Law firms | High case values and aggressive click competition put legal click prices among the UK's highest; practice area moves it by multiples. | £8.93 |
| Dentists | High-value treatments (implants, aligners) carry expensive clicks; routine-checkup enquiries cost far less. | £2.34 |
| SaaS | The "lead" is a trial or demo; long sales cycles make the CPL-to-CPA gap the widest of any row here. | — |
| Accountants | Recurring client value supports a higher allowable CPL than one-off work ever could. | £5.86 |
| Plumbers | Emergency-intent searches convert fast but carry premium click prices — urgency is what you are bidding on. | £4.67 |
| Estate agents | Valuation leads are the unit; stock levels and postcode competition move the price. | £7.79 |
| Recruitment agencies | Two audiences, two CPLs; the client-lead number is the one that matters. | £0.74 |
| Tradesmen | Service radius and job value set the ceiling; Local Services Ads offer a pay-per-lead alternative. | £1.10–£5.68 by trade |
Source: UK Google Ads data (DataForSEO), July 2026 — average cost per click on the core commercial search terms we track in each niche. SaaS sits outside this local-services dataset, so that cell stays blank rather than borrowing a foreign figure.
Two related questions worth absorbing here. What is the average cost per lead in insurance? Insurance sits among the highest-CPL industries anywhere, because customer lifetime value is high and aggregators dominate the auction — no verified UK figure exists to print, and insurance is not a vertical we serve. Average cost per lead real estate — in the UK this means estate agent valuation leads, row six above; the US articles using "real estate" price a different market in a different currency.
The dataset behind the table covers more than twenty UK niches across trades and professional services — see the full set of industry pages.
Google Ads, Local Services Ads and Facebook: channel changes the price
How much do Google Ads charge per lead? Google Ads Search does not charge per lead — you pay per click, and CPL is derived: cost per click ÷ landing-page conversion rate. Which is why what a good landing page conversion rate looks like matters exactly as much as the click price.
The exception is Local Services Ads, which genuinely charge per lead for eligible trades — see Google Local Services Ads in the UK.
What is a good cost per lead on Facebook? Facebook leads usually cost less per lead than Google search leads and convert at a lower rate — interruption versus intent. Compare channels on cost per customer, not cost per lead — see Google Ads vs Facebook Ads for lead generation. No channel CPL figures are printed here; none are sourced.
What paying for lead generation costs in the UK
How much does lead generation cost in the UK, and how much should you pay for it? The full treatment lives on the owning service page; briefly, total cost is media spend — yours, capped by you — plus the management layer, priced as a flat fee, a percentage of spend, or per-lead or commission models. What you should pay is bounded by the allowable-CPL arithmetic above, not by any rate card.
For the fee-model breakdown, see how much PPC agencies charge in the UK. GrowthLine publishes our published fees in full, and the service behind them is what a lead generation agency engagement includes.
Cost per lead FAQs
What is a good cost per lead in the UK?
There is no single good number: a £40 lead can be excellent for a solicitor and ruinous for a window cleaner. The honest test is your allowable cost per lead — what a new customer is worth to you, multiplied by the share of that value you will spend to win one, multiplied by the rate at which you close leads into customers. No reliably sourced UK benchmark table exists — most in circulation are US-derived or unsourced — which is why this guide shows the method and the by-industry drivers instead of inventing figures.
How do you calculate cost per lead?
Divide what you spent by the leads it produced over the same period: total spend ÷ leads = cost per lead. Decide what counts on both sides and keep it consistent — media spend alone gives the platform's CPL, while adding the management fee gives the fully loaded figure a lead really costs the business. Count enquiries, not clicks, and count each one once.
What's the difference between cost per lead and cost per acquisition?
Cost per lead prices an enquiry — a form fill or a call. Cost per acquisition prices a won customer, so it equals cost per lead divided by the rate at which leads become customers. If you close one lead in four, a £25 lead is a £100 acquisition. Judging campaigns on CPL alone hides lead quality, which is why both numbers matter.
What is a good cost per lead on Facebook?
The same rule applies on every channel: good means below your allowable cost per lead, and no trustworthy UK benchmark exists for Facebook either. What can be said qualitatively is that Facebook leads usually cost less per lead than Google Ads search leads but convert at a lower rate, because Facebook interrupts people rather than answering an active search. Compare the channels on cost per customer, not cost per lead — our Google Ads vs Facebook Ads guide sets out that comparison.
William Thomas runs GrowthLine, building and managing Google Ads accounts and landing pages for UK lead-generation businesses.
Find out what your leads actually cost — and what they should
A free audit reports your live cost per lead and conversion rate in writing — the two numbers this page's arithmetic needs — and if the maths cannot work for your job values, it says so.