Advertising ROI calculator
Calculate advertising return and return on ad spend.
Calculate your advertising cost for each acquisition.
Templates and calculations run locally in your browser. No generative AI or paid API is used. Review results before use.
Cost per acquisition = ad spend ÷ acquisitions.
Spend $300 to acquire 10 customers: cost per acquisition is $30.
Define an acquisition consistently, such as a new paying customer rather than a click or enquiry.
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