Email Marketing ROI Calculator
Calculate the ROI percentage of an email marketing campaign from its cost and revenue generated, plus optional cost per email.
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Any paid promotion to grow the list or campaign
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Optional — enables a cost-per-email figure
Campaign ROI
+1500.0%
Total cost: $150.00
Cost per email: $0.02
How Email Marketing ROI Is Calculated
Add up your total campaign cost — your email platform/tool subscription plus any ad spend used to grow your list or promote the campaign — then compare it to the revenue that campaign generated. Return on investment (ROI) expresses the net gain as a percentage of what you spent.
If you know how many emails were sent, the calculator also shows a cost-per-email figure, which is useful for comparing efficiency across different campaigns or list sizes.
Example
A campaign costing $150 in platform fees that generates $2,400 in revenue has an ROI of (($2,400 − $150) ÷ $150) × 100 = 1,500%. Sent to a list of 10,000 people, that's a cost of $0.015 per email.
Common Use Cases
- Reporting campaign performance to stakeholders or clients.
- Comparing ROI across multiple email campaigns to see which performed best.
- Justifying continued investment in an email marketing platform or list-growth ad spend.
FAQs
What counts as "revenue generated" from a campaign?
Ideally, revenue directly attributable to that specific campaign — for example, sales tracked through a unique discount code, UTM-tagged link, or attribution window tied to clicks from that email. Mixing in revenue that would have happened anyway will overstate ROI.
Is email marketing ROI usually this high?
Email marketing is often cited as one of the highest-ROI marketing channels because sending costs are low relative to potential revenue, especially for an engaged existing list — but actual results vary widely by industry, list quality, and offer.
Should I include staff time as a cost?
This calculator only accounts for direct monetary costs (platform fees and ad spend). If you want a fully loaded ROI figure, you can add an estimated dollar value for the time spent creating and managing the campaign into the platform/tool cost field.