ADS STUDIO / PERFORMANCE EDUCATION
What Is a Good Cost per Lead in Google Ads?
A good cost per lead is one that makes commercial sense after considering lead quality, close rate, customer value and profit margin. There is no reliable universal target for every UK industry.
A good cost per lead is one that makes commercial sense after considering lead quality, close rate, customer value and profit margin. There is no reliable universal target for every UK industry.
Work backwards from customer value
If a typical job generates £400 contribution before marketing and one in four qualified enquiries becomes a customer, each enquiry has an expected contribution of £100 before acquisition costs. Paying £40 for a qualified enquiry may leave room for profit; £120 may not. This simplified example ignores fixed costs and repeat purchases.
Practical next step: Note your business-specific assumptions and discuss them before setting an advertising budget.
This guide is for UK business owners considering or improving paid search. The examples explain practical decisions rather than predicting results for a particular account.
Understand what counts as a lead
A genuine request for your service differs from a wrong-number call or spam form. Define qualified enquiries before comparing performance.
Calculate cost per lead correctly
Divide eligible campaign spend by recorded leads for the same period. Make sure tracking is accurate and attribution rules are understood.
Work from lead to customer
A £30 lead that never buys may be less useful than an £80 lead that results in profitable work. Record the outcomes where possible.
Different services need different targets
A quick low-value appointment and a high-value installation have different economics. Seasonality, geography and competition also affect expectations.
Use a sensible review window
Small samples fluctuate. Compare enough observations and investigate the reasons behind changes before making major budget decisions.
Calculate a break-even lead cost
If a qualified lead converts to a customer 20% of the time and each resulting job delivers £300 in gross profit, the illustrative expected gross profit per qualified lead is £60 (0.20 × £300), before operating overheads and advertising fees. A profitable target cost per lead would normally need to sit below that figure, allowing enough margin for all other costs. Lead quality matters as much as the reported count.
Practical next steps
- Write down one commercial goal and what a qualified enquiry means.
- Check the search terms, business economics and tracking information relevant to this topic.
- Record a baseline and review enough genuine data before changing the budget.
- Keep your Google Ads account accessible and management fees clearly documented.
Common questions
Is a lower cost per lead always better?
No. A cheaper enquiry can be less valuable when it is unqualified. Compare qualified leads, sales and gross profit instead of counting every form or call as equal.
How is Google Ads cost per lead calculated?
Divide advertising spend for a defined period by the enquiries attributed to that spend. For example, £600 of spend and 15 recorded enquiries gives £40 per enquiry; confirm the 15 include genuine prospects.
Before you make a decision
Use this short decision check alongside your own account and commercial information:
- Confirm the action you want a customer to take and how you will measure it.
- Check the assumptions behind any worked example against real business costs.
- Separate Google advertising spend from management charges and other costs.
- Review customer outcomes and lead quality, not simply clicks or impressions.
Published by Ads Studio, a trading name of Xcel Rank Ltd (company no. 17104488). Prepared to help business owners understand Google Ads management. It is general information; advertising platforms and policies change.
Useful official resources: Google Ads Help and Google’s advertiser guide.