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Online Marketing Conversion Calculator

Follow a funnel from impressions to sales and see the cost at each stage.

Change any value: results update instantly
Results
Click-through rate1.5%
Conversion rate3%
Cost per click$0.80
Cost per acquisition$26.67
Return on ad spend2.63×

Please do not make financial decisions based on these results.

What is the Online Marketing Conversion Calculator?

Follow a funnel from impressions to sales and see the cost at each stage. To use the Online Marketing Conversion Calculator, enter impressions, clicks, sales, ad spend, average order value; it returns click-through rate, conversion rate, cost per click, cost per acquisition and more, and shows them instantly as you type.

Where the Online Marketing Conversion Calculator fits

Follow a funnel from impressions to sales and see the cost at each stage. The main figure it returns is the Click-through rate, worked out from the values you enter.

It belongs with the other marketing & saas metrics tools. If you are comparing options or checking a result from another angle, try the Conversion Rate Calculator, CPC and CPM Calculator or the CPM Calculator.

How to use the Online Marketing Conversion Calculator

  1. Enter your numbers. The inputs are Impressions, Clicks, Sales, Ad spend ($), Average order value ($). Use real figures from your own records where you can. Fields marked optional can stay at zero.
  2. Read the result. The highlighted box gives the Click-through rate, and the cards below show Conversion rate, Cost per click, Cost per acquisition. Tables and charts break it down further.
  3. Test other scenarios. Results update as you type. Change one value at a time to see what drives the answer, and press Reset to go back to the defaults.

Formula and how it works

CTR = clicks ÷ impressions; conversion rate = sales ÷ clicks; CPA = spend ÷ sales.

Example with real numbers

Here is the Online Marketing Conversion Calculator using the default values shown in the calculator above:

Inputs

Impressions500,000
Clicks7,500
Sales225
Ad spend ($)6,000
Average order value ($)70

Results

Click-through rate1.5%
Conversion rate3%
Cost per click$0.80
Cost per acquisition$26.67
Return on ad spend2.63×

With these inputs the calculator returns Click-through rate: 1.5%. Change any value in the calculator to see how the result moves.

What if you change one input?

Sensitivity check: raising Impressions from 500,000 to 600,000 (about 20% higher) and leaving everything else as in the example above changes the results like this:

ResultExampleAfter the changeChange
Click-through rate1.5%1.25%-16.7%
Conversion rate3%3%0%
Cost per click$0.80$0.800%
Cost per acquisition$26.67$26.670%
Return on ad spend2.63×2.63×0%

The input that moves the result most is the one to check twice. Change it in the calculator above to test your own case.

What the results tell you

The results panel of the Online Marketing Conversion Calculator reports Click-through rate, conversion rate, cost per click, cost per acquisition and return on ad spend. Compare these figures while changing one input at a time, and use the related calculators below to look at the same situation from another angle.

Method and limits. This calculator applies the formula in the section above to your inputs, in your browser; nothing you enter is stored on our servers. The result is only as accurate as the numbers you enter and the formula shown above. It is for information, not financial, tax or legal advice.

Frequently asked questions

Where should I improve first in a funnel?

Fix the stage with the biggest drop-off compared with benchmarks.

Which marketing metrics matter most?

Customer acquisition cost, lifetime value, conversion rate, churn and return on ad spend show whether growth is profitable.

Do these calculators connect to my analytics?

No. You type in your own figures, and nothing is sent to our servers.

Are the results guaranteed?

No. Results depend entirely on the numbers you enter and the formulas shown on this page. Please do not make financial decisions based on them alone; confirm important figures with a licensed professional.

All Marketing & SaaS Metrics calculators →

Disclaimer: Please do not make financial decisions based on these results. These calculators are for general information only. Talk to a licensed professional before making any financial, tax or legal decision. Read the full disclaimer.
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