Business & Marketing

CPM, CPC and CTR Calculator

All the main ad-cost metrics from four numbers.

By TheCalcTools Updated Formula checked and tested

Your numbers

Symbol only: enter amounts in the currency you pick.
$

Your results

CTR
CTR
—
CPC
—
CPM
—
Cost per acquisition
—
Click-to-conversion rate
—

CPM, CPC and CTR Calculator by TheCalcTools

How the CPM, CPC and CTR Calculator works

Enter the campaign’s impressions, clicks and total spend.

Add conversions to get cost per acquisition.

CTR, CPC and CPM show how efficiently your ads earn attention and what it costs.

The formula

CTR = clicks ÷ impressionsCPC = spend ÷ clicks

Worked example

Using the default values shown in the calculator:

Impressions200000
Clicks3000
Ad spend$1800
Conversions90
  1. CTR = 3,000 ÷ 200,000 = 1.50%.
  2. CPC = $1,800 ÷ 3,000 = $0.60; CPM = $9.00.
  3. CPA = $20.00.

Result:

CTR1.50%
CPC$0.60
CPM$9.00
Cost per acquisition$20.00
Click-to-conversion rate3.00%

Frequently asked questions

What does CPM mean?

Cost per mille: the price for one thousand ad impressions.

Which metric should I optimise?

Choose the one tied to your goal: CPM for awareness, CPC for traffic, CPA for sales or leads.

Sources and further reading

Conversion Rate CalculatorTurn visitors and sales into a conversion rate you can improve ROAS CalculatorSee whether your ads earn more than they cost, after product margin Customer Acquisition Cost (CAC) CalculatorHow much does it cost to win one customer, and is it worth it? Customer Lifetime Value CalculatorEstimate how much profit an average customer brings over their lifetime, and compare it… Email Marketing ROI CalculatorEstimate what your email programme earns each month and its return on investment, from… Churn Rate CalculatorMeasure how many customers you lose and how long the average one stays

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This calculator gives estimates for information only. Check important results independently before you rely on them. See our disclaimer.