Manual CPC and Maximize clicks in Google Ads

This guide is built from Google Ads Help: About Manual CPC bidding, Manual CPC bidding, Actual cost-per-click (CPC), About Maximize clicks bidding, Determine a bid strategy based on your goals, About bid adjustments, Portfolio bid strategy, About automated bidding and Manual bidding in Search Partner Network. Checked on 10 November 2026. Where we add our own view, we say so.

How every bid strategy compares is in our budgets and bidding guide, and the conversion-based strategies are in our Maximize conversions guide. This page is about the two ways to bid for clicks: setting your own maximum cost per click (Manual CPC) or letting Google set click bids within your budget (Maximize clicks).

How Manual CPC works

With Manual CPC you set a maximum cost-per-click bid, the "max. CPC". Google describes it as the highest amount you are willing to pay for a click on your ad, unless you use bid adjustments. You pay only when someone clicks: if 100 people see your ad and three click it, you pay for the three clicks.

When you choose Manual CPC, Google sets a default max. CPC for you. Google's advice is to change it to amounts you are comfortable with, watch how many clicks come in and whether they lead to business results on your site, and re-evaluate your bids regularly because traffic keeps changing. To pick a starting bid, Google points to three tools:

• Bid simulator: "what-if" scenarios, such as how many more impressions a higher bid would have brought last week.
• Keyword Planner: how often keywords are searched, with cost estimates. Our Keyword Planner guide explains its top-of-page bid ranges.
• First-page bid estimates: roughly what you may need to bid to show on the first page of Google search results.

The max. CPC is one input to Ad Rank. Because Ad Rank is based on your bid and the quality of your ad compared with other advertisers' ads, Google says raising your max. CPC will probably increase your ad's chances of appearing. A better ad can do the same work as a higher bid; our Quality Score guide covers that side.

Ad group, keyword and placement bids

Manual CPC lets you set the bid at three levels, according to Google's Manual CPC page:

• Ad group default bid: one max. CPC for every keyword in the ad group, and for its placements on the Display Network. Google calls this the easiest way to manage your CPCs.
• Keyword bids: a separate bid for an individual keyword instead of the ad group default. Google's example is a bakery that bids more for "apple fritters" than "donuts" because those searchers buy more.
• Placement and other targeting bids: on the Display Network you can set a max. CPC for placements, topics or other targeting methods, such as a higher bid for one particular website.

This is the main reason to choose Manual CPC: if you know some keywords or placements are more profitable, you can send more of the budget to them. A clear account structure, with tight ad groups, makes ad group bids meaningful.

What you actually pay per click

Your max. CPC is a ceiling, not the price. The amount charged for a click is the actual CPC, and Google says it is often less than the max. CPC, sometimes much less. In the auction you pay only what is needed to clear the Ad Rank thresholds and beat the Ad Rank of the advertiser immediately below you. If no one is below you, you pay the reserve price.

Two more points from Google's actual CPC page are worth knowing:

• Ad Rank thresholds, and so actual CPCs, are typically higher for ads above the search results than for ads below them, even when no other advertiser is directly below you.
• The gap in Ad Rank matters. When your ad ranks far ahead of the next one, you are more likely to win the position but may pay more per click for that certainty, so the competitors further down also influence your price.

When your max CPC can be exceeded

Google lists three features that can make the actual bid higher than the max. CPC you set:

• Bid adjustments: a +20% mobile adjustment on a $1 bid gives a $1.20 bid on mobile searches.
• Manual bidding for Search partners: with enough conversion data, Google may use Smart Bidding on Search partner sites, using the campaign's cost per conversion on Google Search as the target. It may lower or raise your bid there.
• Enhanced CPC: this is gone for Search and Display. Google's automated bidding page says that from the week of March 31, 2025, campaigns that were not moved to another strategy are effectively using Manual CPC.

How Maximize clicks works

Maximize clicks is an automated bid strategy. Google says it adjusts your max. CPC and sets your bids "to help get as many clicks as possible within your budget". You set an average daily budget and Google manages the bids. Two things it does not do: it does not optimise towards impression share, and you cannot set individual keyword bids with it, only one maximum CPC limit for the whole campaign.

You can use it on a single campaign or as a portfolio bid strategy that groups several campaigns, set up under Bid strategies in the Tools menu. Portfolio strategies are kept in the Shared library. Demand Gen campaigns support Maximize clicks, but not as a portfolio strategy and not with a maximum CPC bid limit.

Google suggests Maximize clicks for new campaigns that lack the conversion data for Target CPA or Target ROAS, or when the main goal is website traffic rather than direct conversions.

The maximum CPC bid limit

The optional maximum CPC bid limit caps what Maximize clicks will bid. Without it, Google adjusts bids to get as many clicks as possible while spending your budget. Google says a limit can help you control costs if your CPCs are higher than you want, with two caveats:

• If the limit is too low, the strategy may not be able to reach your goal.
• Bid adjustments apply on top of the limit, so a positive adjustment can take a bid above it.

In our practice, we set the limit after a week or two of data, a little above the average CPC the campaign is already paying, rather than guessing one at launch. That is our approach, not a Google rule.

Manual CPC or Maximize clicks

Google's guide to choosing a bid strategy gives these signs for each:

	Manual CPC	Maximize clicks
Who sets the bids	You, per ad group, keyword or placement	Google, within your budget
Bid control	Separate bids for what performs best	One optional campaign-wide max CPC limit
Budget	Fits when you don't need to reach a target budget every month	Fits when you want to reach a budget consistently
Time needed	Regular bid management	Little; no individual bids to update
Good for	You know which keywords or placements are profitable	New advertisers, or unsure how much to bid
Not a good fit	You lack time or don't know what is profitable	You need a specific Ad Rank or cost per conversion

Both bid for clicks, not conversions. Once conversion tracking records enough conversions, Google's guidance points towards the conversion-based strategies in our Maximize conversions and Target CPA guides. If you want to test a switch, a Google Ads experiment compares the two on a share of the traffic.

Bid adjustments with each strategy

Bid adjustments are percentage increases or decreases on your bids, for device, location, ad schedule, audiences, calls and demographics. They are where these two strategies differ most from Smart Bidding. Google's bid adjustment table shows Maximize clicks supporting all of those types, while Maximize conversions, Maximize conversion value and Target ROAS only accept a -100% device adjustment.

Ranges and rules from Google's page:

• Device adjustments run from -100% to +900% and can be set at campaign or ad group level. The ad group adjustment wins, unless the campaign has -100% for that device. Only device adjustments allow -100%, which excludes the device.
• Location, ad schedule, targeting method, audience, call and demographic adjustments run from -90% to +900%.
• Overlapping location adjustments are not combined: with +50% for France and +100% for Paris, a searcher in Paris gets only the Paris adjustment.
• Maximize clicks does not account for device differences on its own, so Google suggests a mobile bid adjustment if mobile clicks convert differently. It then combines your adjustment with its own.

How several adjustments multiply, and the cap on the combined total, are in our ad scheduling guide; device-by-device advice is in our device targeting guide.

Judging the results

Google gives these tips for checking Maximize clicks. In our view they apply just as well after a Manual CPC change:

• Compare clicks for the budget with before, but remember that clicks fluctuate naturally, so before-and-after comparisons are not exact.
• Give the strategy a few days or weeks before judging it.
• Allow for holidays, weekends, special events, product data changes and competitors in the auction.
• Look at click share. If it is already very high, you may be getting nearly all the traffic and Maximize clicks may not bring much more.

More clicks are only worth paying for if they are the right clicks. Check the search terms report and the cost per enquiry, not just the click count.

FAQ

What is the difference between Manual CPC and Maximize clicks?

With Manual CPC you set the maximum cost per click yourself, per ad group, keyword or placement. With Maximize clicks Google sets the bids to get as many clicks as possible within your budget, and you can only set one optional maximum CPC limit for the campaign.

Do I always pay my max CPC?

No. Google says the actual CPC is often less than the max. CPC, sometimes much less, because you pay only what is needed to clear the Ad Rank thresholds and beat the advertiser just below you. Bid adjustments can make the bid higher than the max. CPC.

Can I set a maximum CPC with Maximize clicks?

Yes, as an optional campaign-wide maximum CPC bid limit, except in Demand Gen campaigns. Google warns that a limit set too low may stop the strategy reaching your goal, and that bid adjustments apply on top of it.

Do bid adjustments work with Maximize clicks?

Yes. Google's bid adjustment table shows Maximize clicks supporting device, location, ad schedule, audience, call and demographic adjustments, unlike Maximize conversions and Target ROAS, which only take a -100% device adjustment.

What happened to Enhanced CPC?

Google says Enhanced CPC is no longer available for Search and Display campaigns from the week of March 31, 2025. Campaigns that were not moved to another strategy before then are effectively using Manual CPC.

Paying for clicks only makes sense when the page they land on turns them into enquiries. See our website development service and all our services, or read the rest of our guides.