CPC Calculator

Calculate cost per click from spend and clicks, and the maximum CPC you can afford given your conversion rate and the value of a conversion.

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%
$

Revenue per conversion × gross margin

CPC$1.25
Break-even (max) CPC · The most a click can cost and still break even
$1.20
Implied CPA at this CPC
$50.00
Clicks per conversion
40

Results update as you type. Values are kept in the URL, so you can share or bookmark this exact calculation.

Formula

CPC = Ad spend ÷ Clicks
Max CPC = Gross profit per conversion × Conversion rate
Implied CPA = CPC ÷ Conversion rate

How to read CPC

Cost per click is the price of a visit. On its own it says little — a cheap click that never converts is expensive, an expensive click from a high-intent search can be a bargain. The useful comparison is against max CPC: the conversion rate times what a conversion is worth in gross profit.

Max CPC is also how manual bids should be set. If a conversion is worth $48 in gross profit and 2.5% of clicks convert, every click is worth $1.20 at break-even; bid below that by whatever margin you want to keep.

Frequently asked questions

How do I convert CPC to CPM?
CPM = CPC × CTR × 1,000. A $1.25 CPC with a 2% CTR is a $25 CPM. The CPM calculator does the reverse.
Why does Google show a different average CPC?
Platform average CPC is spend divided by clicks over the selected date range and may exclude invalid clicks or include clicks credited later. Small differences are normal; large ones usually mean a date-range or currency mismatch.
Should max CPC use revenue or gross profit?
Gross profit. Using revenue overstates what a click is worth by the inverse of your margin and leads to bidding at a loss.

CPC by platform