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How to calculate ROI for marketing campaigns

Use a simple ROI formula to compare ads, SEO, and other growth experiments.

ROI is useful when you want to compare one project against another using the same language. It answers a simple question: did the return justify the money invested?

The basic formula is net return divided by investment cost, multiplied by 100. In practice, that means you subtract your spend from the total return, then compare the remaining amount to your spend.

This works for ads, SEO content, affiliate tests, and software subscriptions. If you track the same way every time, you can compare projects without guesswork.

Use the ROI calculator when you want a quick result and the guide when you want the reasoning behind it.

A good habit is to separate short-term return from long-term value. Some campaigns do not pay back immediately but still deserve budget because they bring traffic, links, or repeat customers.

How to calculate ROI for marketing campaigns

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