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CPC Calculator

Spend, clicks, and CPC: enter two and get the third, plus CTR and CPM if you add impressions.

Free toolsPaid MediaReviewed September 2026

Spend, clicks, and CPC

Media cost only, before agency or platform fees.

Clicks delivered, or the number you need.

Average cost per click.

ImpressionsOptional. Adds CTR and CPM alongside CPC.

Add impressions to see CTR and CPM alongside CPC.

CPC

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Cost per click

Spend
–
Clicks
–
CTR
–
Needs impressions
CPM
–
Needs impressions

Runs entirely in your browser. Nothing you enter is stored or sent anywhere. Last reviewed September 2026.

What CPC tells you, and what it hides

CPC is the price of a visit, not the price of a customer. It is the most quoted number in paid media because it is easy to read off a dashboard and easy to compare across campaigns. That convenience is also the trap: a cheap click from the wrong audience costs more per sale than an expensive click from the right one.

The arithmetic is spend divided by clicks. The useful work starts when you connect it to the numbers on either side. Upstream, CPC is CPM divided by 1,000 times click-through rate, which means you can lower it by buying cheaper impressions or by earning more clicks from the same impressions. Downstream, CPC divided by conversion rate is CPA, which is the number a finance team actually cares about.

Use this tool to move between the three quantities when planning. If you know the CPC a channel tends to deliver and the clicks a landing page needs to hit a conversion target, the budget falls out directly. If you have a fixed budget, you can see how many clicks it buys before you commit.

Formulas

CPC
= Spend ÷ Clicks
Spend
= CPC × Clicks
Clicks
= Spend ÷ CPC
CTR
= Clicks ÷ Impressions
CPM
= Spend ÷ Impressions × 1,000
CPC
= CPM ÷ (1,000 × CTR)

Frequently asked questions

How do you calculate CPC?

Cost per click is total ad spend divided by clicks. $5,000 of spend that produces 3,200 clicks is a CPC of $1.56. Run it the other way to budget: 3,200 clicks at $1.56 each needs $5,000. The tool solves in any direction, so you can also ask how many clicks a fixed budget buys at a known CPC.

What is a good CPC?

There is no universal number. Search CPCs track the commercial value of the keyword: a broad informational query can cost well under a dollar while legal, insurance, and B2B software terms often run into double digits. Social and display clicks are usually cheaper because the intent behind them is weaker. Judge a CPC by what the click becomes. A $9 click that converts at 10% is a $90 acquisition. A $1 click that converts at 0.5% is a $200 one.

How are CPC, CPM, and CTR related?

They are the same money seen at different points in the funnel. CPC equals CPM divided by 1,000 times CTR. A $12.50 CPM at a 0.8% click-through rate produces a $1.56 CPC. Add impressions above and the tool shows CTR and CPM next to CPC, so you can tell whether an expensive click comes from expensive impressions or from an ad that few people click.

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