Cost Per Click

Paid Media

Also: CPC · Pay Per Click · PPC

CPC = Total ad spend ÷ Total clicks

FormulaSpend ÷ Clicks

Varies byPlatform, industry, intent

Watch forCheap clicks with low intent

Judge againstConversion rate and CPA

Quick definition

Cost per click, commonly abbreviated to CPC, is the amount you pay each time someone clicks your ad. Calculated as total ad spend divided by total clicks over the same period. CPC is the standard unit for comparing ad efficiency across campaigns, platforms and keywords.

Run the numbers

Total ad spend

Total clicks

Your CPC$5.00

Compare against your conversion rate and CPA, not against a platform average. A CPC that looks high can be entirely justified if the clicks convert at a strong enough rate.

How it varies across Australia

CPC varies widely across platforms and industries in Australia. Search-based platforms like Google Ads sit higher than social platforms because the intent behind the click is stronger. LinkedIn sits highest of the major platforms for most Australian categories because the audience is commercially valuable and small. The spread from the cheapest to the most expensive categories on any single platform can be an order of magnitude.

See acquisition benchmarks across Australian industries →

CPC across the three main platforms

Google Ads

Intent-based. You pay for clicks from people actively searching. CPC sits higher than social because the searcher has already decided they want something.

Highest CPCs, strongest intent

Meta Ads

Audience-based. You pay for clicks from people who match a profile. Intent is weaker than search so CPC is usually lower, but so is the conversion rate from click to purchase.

Lower CPCs, lower intent

LinkedIn Ads

B2B-focused. The most expensive CPC of the three for most Australian businesses. Justified when the buyer profile is narrow and the deal size is large.

Highest of all three for B2B

What it actually means

CPC is the entry-level metric in paid media. It's the first number most marketers learn and the one that creates the most confusion later.

The confusion comes from treating CPC as the end of the analysis. A cheap click is not automatically a good click. A click from someone who had no intention of buying costs you something and produces nothing. A more expensive click from someone close to a decision can be the most efficient spend in the whole account.

The relationship between CPC and intent is not accidental. In an auction system like Google Ads, advertisers bid more for keywords where clicks convert, which bids up the price. A high CPC is often a signal that other businesses have found the clicks worth paying for. A suspiciously low CPC is often a signal that nobody else is bidding, which is a question worth asking.

CPC is best read alongside click-through rate and conversion rate. CPC tells you what you paid. Click-through rate tells you whether the ad was relevant to the audience. Conversion rate tells you whether the landing page earned the click. The three numbers together give you a useful picture. CPC alone gives you a cost with no verdict attached.

A low CPC is only good news if the click was worth having. Cheap traffic that doesn't convert is just a fast way to burn budget.

How to calculate it

CPC = Total ad spend ÷ Total clicks

Worked example. You spent $3,200 on Google Ads last month and the campaign generated 640 clicks. CPC = $3,200 ÷ 640 = $5.00 per click.

The Australian context

Australian CPCs sit above equivalent US figures on most platforms because the auction pool is smaller. Fewer advertisers competing for the same keywords means less competitive pressure in some categories, but in high-value categories like finance, legal and insurance, a concentrated group of large spenders bids CPCs up significantly.

Australian advertisers also deal with a smaller total addressable audience, which means frequency caps kick in faster. Once you have exhausted the available audience on a platform, CPC tends to rise as the algorithm reaches less engaged users. This is a common ceiling for Australian mid-market businesses scaling paid social.

Where people get this wrong

Optimising for the lowest CPC in the account.Low-CPC keywords and placements are usually low-intent. Chasing cheap clicks often means pulling budget from high-intent terms that cost more but produce a lower CPA.

Using CPC to compare performance across platforms.A click on LinkedIn and a click on Meta are not the same thing. The audience, the intent and the likely conversion rate are all different. CPC-to-CPC platform comparisons tell you nothing useful.

Ignoring Quality Score or relevance scores when CPC looks high.In Google Ads and Meta, the price you pay per click is partly determined by how relevant your ad and landing page are to the audience. Fixing relevance can lower CPC without touching your bids.

Common questions

What is a good CPC in Australia?

There is no universal good CPC. The right number is whatever produces a CPA that makes sense for your margin and lifetime value. A higher CPC from a high-intent keyword can produce a lower CPA than a cheap CPC from a broad match. Judge CPC in the context of what the click does next.

Why is my CPC going up over time?

Usually one of three things: more advertisers entering the auction, your Quality Score or relevance score has dropped, or your audience is becoming more saturated and the algorithm is reaching harder-to-engage users. Check your relevance scores before assuming the market has simply got more competitive.

How is CPC different from CPM?

CPC is cost per click. CPM is cost per mille, meaning cost per thousand impressions. CPC charges you only when someone clicks. CPM charges you for being shown, regardless of clicks. CPC is better for direct-response campaigns. CPM is better for brand awareness where you want reach rather than action.

Does a higher CPC mean better ad quality?

Not directly. In Google Ads, higher Quality Score can actually lower your CPC by making your ad more relevant. A high CPC on a well-optimised account usually means the keyword is competitive and valuable. A high CPC on a poorly-structured account often means low relevance scores are inflating the price.

Keep exploring

About New Rebellion

New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.

How we think →