Email List ROI Calculator
See exactly how much revenue your email list should be generating — adjust any variable and your results update in real time.
Use this free email list ROI calculator to estimate how much revenue your email list should be generating every month. Adjust list size, send frequency, open rate, click rate, conversion rate, and AOV to model different scenarios in real time.
Not hitting these numbers?
TGM manages email marketing for eCommerce brands
Flows, campaigns, and list growth — fully handled.
Get a Free Email Audit →Email Marketing Benchmarks for eCommerce
| Metric | Below Average | Average | Strong |
|---|---|---|---|
| Open Rate | < 15% | 15–25% | > 30% |
| Click Rate | < 1% | 1.5–3% | > 4% |
| Conversion Rate | < 1% | 1–3% | > 5% |
| Revenue / Subscriber / Year | < $1 | $1–$3 | > $5 |
| Email ROI | < 20× | 36–42× | > 50× |
How to Calculate Email List ROI
Email List ROI is calculated by comparing the revenue generated from your email campaigns against the cost of running them. For eCommerce brands, the simplest formula is:
This calculator runs that formula in real time. Adjust any variable to model different scenarios — more sends per month, a higher AOV, or the compounding impact of improving your click rate by just 1%.
Why Most eCommerce Brands Under-Earn From Email
Most eCommerce brands leave significant revenue on the table with their email programs. The three most common issues are:
- Missing automation flows: Abandoned cart, welcome series, and post-purchase flows can drive 30–40% of total email revenue. If you don't have them, you're leaving money on the table.
- Sending too infrequently: Brands sending fewer than 4 emails per month typically underperform. Increasing frequency (with relevant content) almost always lifts revenue.
- Poor list segmentation: Sending the same email to your entire list reduces engagement and deliverability. Segment by purchase behaviour, engagement level, and lifecycle stage for better results.
The fix is usually straightforward: add the core automated flows, increase campaign frequency to at least 8–12 sends per month, and segment your audience so every email feels relevant.
Frequently Asked Questions
The average email list ROI is $36–$42 for every $1 spent. For eCommerce brands, a healthy program generates $1–$5 in revenue per subscriber per year. Brands with strong automation and segmentation often exceed $5 per subscriber.
Multiply list size × open rate × click rate × conversion rate × AOV to get estimated monthly revenue. Divide net email revenue by your email program costs × 100 for your ROI percentage. This calculator handles the estimation automatically.
The average eCommerce open rate is 15–25%. Above 25% is strong. Segmented, personalised campaigns regularly hit 30–40%. If you're below 15%, focus on subject line testing and list hygiene first.
A healthy eCommerce list should generate $1–$5 per subscriber per year. With 10,000 subscribers, target $10,000–$50,000 annually. If you're below $1/subscriber, the quickest wins are adding automated flows (abandoned cart, welcome series, post-purchase) and improving send frequency.
Not hitting these numbers? TGM manages email marketing for eCommerce brands — flows, campaigns, and list growth, fully handled.
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