Cost per click from your ad spend and clicks — or flip it around and find the highest CPC you can bid while still hitting your target cost per acquisition.
Cost per click is what you pay, on average, for one click on your ad. Divide total spend by total clicks for the same campaign and date range. Add impressions and the calculator also shows your click-through rate and CPM.
You spent $1,200 on a Google Ads campaign that received 800 clicks. CPC = 1,200 ÷ 800 = $1.50.
If a customer is worth at most $60 to acquire and 3% of clicks convert, you can pay up to 60 × 0.03 = $1.80 per click and still hit your target. Bid above that and every sale costs more than it should; bid well below it and you may be leaving profitable volume on the table.
There is no universal number — CPC depends on the platform, the country, and how competitive the keyword or audience is. Search ads for insurance or legal terms can cost tens of dollars per click, while social ads in broad audiences often cost well under a dollar. The useful comparison is your actual CPC against your maximum CPC above: that tells you whether the click is worth buying.
How do you calculate cost per click? Divide total ad spend by total clicks for the same period. $1,200 spent for 800 clicks is a CPC of $1.50.
What is the difference between CPC and CPM? CPC is the cost of one click; CPM is the cost of 1,000 impressions. CPC = CPM ÷ (CTR × 1,000), so a better click-through rate lowers your CPC at the same CPM.
How do I lower my CPC? Improve click-through rate with more relevant ads, tighten targeting to people likely to click, improve ad and landing-page quality scores on search, and pause keywords or audiences whose CPC is above your maximum affordable CPC.
