What is a good email marketing ROI?

The Data & Marketing Association reports an average of $36 to $42 per dollar spent across all industries. E-commerce and retail tend to perform above average. B2B and nonprofit tend to fall below. A 10:1 ROI ($10 returned per $1 spent) is a reasonable baseline for most businesses.

What costs should I include?

Include your email platform subscription, design and copywriting costs (in-house time or agency fees), list cleaning and management tools, and any paid list growth costs (lead magnets, ads to grow subscribers). Do not include costs that would exist regardless of email, like general website hosting.

How do I improve email ROI?

Three high-impact areas: list hygiene (remove inactive subscribers to improve deliverability and open rates), subject line testing (A/B test subjects to increase open rate), and segmentation (send targeted offers to segments rather than blasting the full list). Each of these directly improves funnel conversion. Run the calculation monthly to track trend direction rather than relying on a single data point.

Does this account for email attribution?

This calculator uses a direct attribution model: revenue is counted if it came from an email click. Multi-touch attribution (where email assisted a sale but was not the last click) would show higher revenue. Use this tool for direct-click ROI and supplement with your analytics platform for assisted attribution. Test both approaches with real data from your business before committing to a single strategy.

What is revenue per email sent?

Revenue per email sent divides total revenue by total emails sent. It is useful for comparing performance across campaigns of different sizes. A large campaign with 100,000 sends and $8,000 revenue ($0.08 per email) may be less efficient than a small campaign with 10,000 sends and $2,000 revenue ($0.20 per email).

Why is my email ROI lower than the $36 benchmark?

The $36 benchmark includes all email types, including high-converting automated sequences (abandoned cart, post-purchase, welcome series) that typically outperform one-time campaigns. If you are only measuring manual campaign sends, your ROI will naturally be lower. Include automated email revenue for an accurate comparison.

Email Marketing ROI Calculator

Model send-to-revenue for one campaign, compare to the ~36:1 industry benchmark, and see which metric lifts profit the most.

100% client-side. Campaign inputs stay in your browser (ons-email-roi-inputs).

Campaign ROI

27.3%

Return (revenue per $1 spent)

2.1:1

Industry average is about 36:1 ($36 revenue per $1 spent). Your campaign: 2.1:1.

List

10,000 subscribers

Opens

2,200 opened

Clicks

330 clicked

Conversions

9.9 converted

Revenue

$743 gross

Gross revenue

$743

Net profit

$96

Gross profit $446

Cost per conversion

$35

Revenue per email sent

$0.07

Which lever moves ROI most?

Largest modeled lift: CTOR +5 pp adds about $149 to net profit vs your current inputs.

Lever	Impact on net profit	Recommended action
Open rate +5 pp	+$101	Test subject lines, preview text, and send time.
CTOR +5 pp	+$149	Improve body copy, layout, and CTA placement.
Conversion rate +1 pp	+$149	Optimize the landing page, offer, and checkout flow.
Average order value +$10	+$59	Add upsells, bundles, or a higher-value offer.

Audience and engagement

List sizeOpen rate %Click-to-open rate (CTOR) %Percent of openers who click.Landing page conversion rate %

Revenue and costs

Average order valueGross margin %ESP cost (this send)Copy / design cost

How does the Email Marketing ROI Calculator work step by step?

Email marketing ROI tells you how much revenue you earn for every dollar spent on email. The industry benchmark is $36 to $42 per dollar spent, according to the Data & Marketing Association and Litmus. But that number is an average across all industries and company sizes. Your actual ROI depends on your list quality, email frequency, offer relevance, and attribution model. The calculator works through the email funnel step by step, starting with total emails sent, applying your open rate to get opens, applying click rate to get clicks, and applying conversion rate to get purchases or signups. Each funnel stage multiplies the previous count by a percentage. Open rate measures what fraction of recipients opened your email. A 20% open rate on 50,000 sends produces 10,000 opens. Click rate (often reported as click-to-open rate) measures what fraction of openers clicked a link. A 15% click-to-open rate on 10,000 opens yields 1,500 clicks. Conversion rate measures what fraction of clickers completed your desired action. A 4% conversion rate on 1,500 clicks generates 60 conversions. Multiply conversions by average order value to get total revenue. The ROI formula is ((Revenue - Cost) / Cost) × 100. A campaign that generates $5,000 in revenue from $1,500 in costs delivers 233% ROI. Revenue per email sent divides total revenue by sends, showing how much each address earned on average regardless of funnel stage. Cost per conversion divides total cost by conversions, showing how much you spent to acquire each customer through this channel. These metrics let you compare email performance to other acquisition channels like paid search or social ads. When calculating email costs, include your email service provider subscription, creative production time (design and copywriting), list maintenance tools, and any growth costs like lead magnet creation or subscriber acquisition ads. Exclude costs that exist regardless of email activity, such as general website hosting or analytics platforms used across all channels. The tool does not include assisted conversions or multi-touch attribution. If email was the last click before purchase, the revenue counts. If email assisted but another channel closed the sale, that revenue is not included in this direct ROI calculation. Most email platforms report both last-click and assisted metrics. Use this calculator for direct attribution ROI and supplement with platform analytics for full multi-touch analysis.

What does a typical Email Marketing ROI Calculator result look like?

Campaign profile: Emails sent: 50,000. Open rate: 22%. Click-to-open rate: 14%. Conversion rate (from click): 4.5%. Average order value: $85. Total email costs: $2,200 (platform: $800, design: $600, copywriting: $800). Funnel breakdown: Emails opened: 11,000 (50,000 × 0.22). Clicks: 1,540 (11,000 × 0.14). Conversions: 69 (1,540 × 0.045). Revenue: $5,865 (69 × $85). ROI: (($5,865 - $2,200) / $2,200) × 100 = 166.6%. Revenue per email sent: $0.117 ($5,865 / 50,000). Cost per conversion: $31.88 ($2,200 / 69). If the average customer lifetime value is $250, the campaign generated $17,250 in downstream value from a $2,200 investment, a 684% lifetime ROI. The direct ROI of 166.6% meets the 10:1 baseline and justifies scaling the campaign. Testing a 2 percentage point improvement in click-to-open rate (from 14% to 16%) would increase clicks to 1,760, conversions to 79, and revenue to $6,715, lifting ROI to 205%. This demonstrates that click rate has a higher amplification effect on ROI than open rate at this baseline. At 22% open rate, a 2 point gain to 24% adds 1,000 opens but only 140 more clicks and 6 more conversions. The same 2 point gain in click-to-open rate adds 220 clicks and 10 conversions. When optimizing email campaigns, test elements that directly influence click behavior (CTA placement, offer clarity, link prominence) before investing in open rate lifts.

Frequently asked questions

What is a good email marketing ROI?
The Data & Marketing Association reports an average of $36 to $42 per dollar spent across all industries. E-commerce and retail tend to perform above average. B2B and nonprofit tend to fall below. A 10:1 ROI ($10 returned per $1 spent) is a reasonable baseline for most businesses.
What costs should I include?
Include your email platform subscription, design and copywriting costs (in-house time or agency fees), list cleaning and management tools, and any paid list growth costs (lead magnets, ads to grow subscribers). Do not include costs that would exist regardless of email, like general website hosting.
How do I improve email ROI?
Three high-impact areas: list hygiene (remove inactive subscribers to improve deliverability and open rates), subject line testing (A/B test subjects to increase open rate), and segmentation (send targeted offers to segments rather than blasting the full list). Each of these directly improves funnel conversion. Run the calculation monthly to track trend direction rather than relying on a single data point.
Does this account for email attribution?
This calculator uses a direct attribution model: revenue is counted if it came from an email click. Multi-touch attribution (where email assisted a sale but was not the last click) would show higher revenue. Use this tool for direct-click ROI and supplement with your analytics platform for assisted attribution. Test both approaches with real data from your business before committing to a single strategy.
What is revenue per email sent?
Revenue per email sent divides total revenue by total emails sent. It is useful for comparing performance across campaigns of different sizes. A large campaign with 100,000 sends and $8,000 revenue ($0.08 per email) may be less efficient than a small campaign with 10,000 sends and $2,000 revenue ($0.20 per email).
Why is my email ROI lower than the $36 benchmark?
The $36 benchmark includes all email types, including high-converting automated sequences (abandoned cart, post-purchase, welcome series) that typically outperform one-time campaigns. If you are only measuring manual campaign sends, your ROI will naturally be lower. Include automated email revenue for an accurate comparison.