Email Marketing ROI Calculator

Estimate clicks, sales conversions, revenue, and return on investment (ROI) for email newsletter and outreach campaigns.

Input Details

Total Campaign Cost

Emails Sent

Expected Open Rate

Click-to-Open Rate (CTOR)

Sales Conversion Rate

Average Customer Value

Results

Campaign ROI Summary

Return on Investment (ROI)

-58.0%

Spending $300.00 yields $126.00 in revenue, resulting in a net loss of $174.00.

Projected Email Opens2,250

Projected Link Clicks79

Total Conversions (Sales)2

Gross Revenue generated$126.00

Net Campaign Profit-$174.00

The Formula

Email ROI Math:

Conversions = Sent × Open Rate × CTOR × Conversion Rate
Gross Revenue = Conversions × Customer Value
ROI = ((Revenue - Campaign Cost) ÷ Campaign Cost) × 100

Example Calculation

For a campaign costing $200, sent to 5,000 subscribers:
Opens: 5,000 × 20% = 1,000 | Clicks (10% CTOR): 1,000 × 10% = 100 | Sales (3% CR): 100 × 3% = 3 Revenue ($100 per sale): 3 × $100 = $300 | Net Profit: $100 | ROI: ($100 / $200) × 100 = 50%

How to Use This Calculator

Enter the **Total Campaign Cost** (software, copy, design fees).
Enter the email list size (**Emails Sent**).
Set the expected **Email Open Rate** percentage.
Set the expected **Click-Through Rate of Openers** (CTOR).
Input the **Sales Conversion Rate** of website visitors.
Input the **Average Customer Value** (average order size).

When This Calculator is Useful

Use this tool when **planning digital marketing budgets**, justifying email software subscriptions (Klaviyo, Mailchimp), or forecasting newsletter revenue streams.

Disclaimer Note

All results are estimates based on standard business formulas and rates. Actual project costs, ROI, and rates may vary based on market conditions, specific requirements, and contract agreements.

Frequently Asked Questions

Email Marketing ROI (Return on Investment) measures the profitability of an email marketing campaign. It compares the net profit generated from sales to the total cost of running the campaign (including software, design, and copywriting costs). Formula: ROI (%) = (Net Profit ÷ Campaign Cost) × 100.

Click-Through Rate (CTR) measures the percentage of *total delivered emails* that resulted in a click. Click-to-Open Rate (CTOR) measures the percentage of *openers* who clicked a link. CTOR is a better metric for evaluating email content relevance, as it ignores subject line performance and isolates click behavior.

Across industries, the average email open rate hovers around 18% to 22%, while the average Click-to-Open Rate (CTOR) is between 8% and 12% (translating to a total CTR of 1.5% to 2.5%). Industry, email type (transactional vs promotional), and segmentation significantly impact rates.

To improve ROI: segment your lists to send highly relevant content, run A/B tests on your subject lines to increase opens, design clean single-column layouts with clear call-to-action buttons to raise clicks, and ensure your landing page matches the email offer to maximize conversions.