Marketing ROI Calculator
Free CalculatorEnter the revenue a campaign generated and what it cost to see your marketing ROI and net profit in seconds β privately.
100% private
Runs in your browser β no numbers leave your device.
Your numbers
Revenue generated by the marketing (sales attributed to the campaign).
Total marketing cost or spend β ads, tools, agency and creative.
Marketing ROI
400.0%
Return on every Β£1 spent β positive means profit after cost. 100% means you doubled your money.
Net profit
US$40,000
Revenue minus cost β the money left after paying for the campaign.
How it works
Enter revenue
Add the revenue the campaign generated for the period.
Enter cost
Add the total marketing spend for the same period.
Read your ROI
ROI percentage and net profit update live as you type.
Compare campaigns
Swap the numbers to see which channels return the most.
Turn better creative into higher ROI
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How to calculate marketing ROI
Marketing ROI (return on investment) measures how much profit your marketing generates for every pound you spend. The formula is simple: subtract your marketing cost from the revenue it generated to get net profit, then divide that net profit by the cost and multiply by 100. So a campaign that brought in Β£50,000 on Β£10,000 of spend returns a net profit of Β£40,000 and an ROI of 400% β four pounds of profit for every pound invested.
A positive ROI means the campaign paid for itself and then some; a negative ROI means you spent more than you earned back. As a rough guide, marketers often aim for at least a 5:1 revenue-to-cost ratio (roughly 400% ROI), though a healthy target depends on your margins and channel. This calculator gives you both ROI and net profit instantly, so you can compare campaigns, channels and creative and put your budget where it returns the most.