How to Calculate Email Marketing ROI

Key Takeaways

• Definition: Email Marketing ROI measures the revenue generated from email campaigns relative to the total cost spent on software and labor.
• Industry Benchmark: On average, email marketing generates $42 for every $1 spent (a 4,200% ROI).
• The Formula: Calculate ROI using: (Gains – Spending) / Spending.
• Optimization: Tracking ROI helps identify high-performing tactics and prevents wasting resources on ineffective campaigns.

 

Are you getting the best return on your email marketing efforts?

Email is one of the most effective digital marketing strategies for brands. But to make the most of them, you need to know what’s working, what’s not, and your overall return on investment (ROI). This helps you sharpen your tactics for better conversions and avoid spending money on campaigns that aren’t resonating with your audience.

Let’s break down what email ROI actually means, how to measure it fast, and how to use those numbers to send smarter.

What Is Email Marketing ROI?

Your email marketing ROI is the revenue you bring in from your emails compared to what you spend.

On average, email generates an astounding ROI of $36-42 for every $1 spent. This makes it one of the most cost-effective marketing tactics out there, arguably the most cost-effective. It also means that if you’re not tracking your email ROI, you might be missing out on what you could be achieving.

Why Tracking Email Marketing ROI Matters

Tracking ROI isn’t optional; it’s the difference between a strategy that grows and one that quietly drains your budget. If you’re not looking at the numbers, you’re flying blind. You’re missing insights that can help you boost performance and sales. This is especially true with email marketing, where the return potential is so high.

Here’s what tracking your email ROI actually does for you:

• It ensures that your email strategy is working
• It ensures that you aren’t wasting time, money, and other resources on tools and tactics that aren’t delivering results
• It can help you pinpoint whether things are going wrong and where

If you’re like most marketers, you rely on your email marketing efforts to accomplish a lot. This includes building brand awareness and buzz for your products or services, supporting lead generation and nurturing, and increasing web traffic and sales. Open rates, click-through rates, conversions: there are plenty of metrics to watch. But ROI tells you whether your emails are actually paying off. And calculating it? Simpler than you’d expect.

How to Calculate Your Email Marketing ROI

Ready to run the numbers? Start with this formula to get a clear read on whether your email marketing is delivering, or just taking up space.

Step 1: Calculate Your Email Marketing Costs

First, calculate your total email marketing cost. The main cost factors are your email marketing software plus labor costs.

Step 2: Measure Your Email Revenue

Calculate the dollar amount of sales your email campaign generated during the same period you calculate your total spend. Email delivers more than just revenue; think brand awareness, list growth, and customer loyalty. But when it comes to calculating ROI, revenue is your north star.

Step 3: Run the ROI Formula

The formula for email marketing ROI is:

The ROI Formula:

((Total Revenue – Total Cost) / Total Cost) x 100 = ROI %

Example Calculation:

• Spending: $500
• Earnings: $1,500
• Math: ($1,500 – $500) / $500 = 2
• Result: 200% ROI

Want to go deeper? Calculate the total amount spent and earned per lead. This tells you not just your ROI, but whether you’re reaching the right people in the first place.

Divide your total spend by the number of leads you converted into sales that month. Once you add up all your converted sales, you can compare that to your total spend to see whether your efforts were successful.

Your ROI isn’t just a report card; it’s a roadmap. Use it to double down on what’s working in your email marketing strategy, cut what isn’t, and keep raising the bar on your campaigns. The data’s there. Now use it. With Benchmark Email’s built-in reporting, tracking it all is one less thing to stress about.

Frequently Asked Questions

What is a good ROI for email marketing?

A healthy email program usually earns at least a 10:1 return, meaning $10 back for every $1 you spend. Recent surveys peg the average closer to 36:1. If you’re already in that range, keep refining. If you’re below it, review your list quality, content, and send frequency.

What is the 80/20 rule in email marketing?

The rule says that about 80 percent of your results come from roughly 20 percent of your effort. In practice, a small slice of your list or content drives most sales. Track ROI by segment, then double down on the contacts, messages, and steps that move revenue.

Is email marketing still worth it?

Absolutely. Industry data shows email still returns around $36 to $42 for each $1 spent. It gives you direct access to people who asked to hear from you, which keeps costs low and results high compared with most channels.

Is a 50% open rate good for email?

Yes. Typical open rates sit between 20 percent and 30 percent, so hitting 50 percent means your subject lines, sender name, and list quality are all strong. Keep in mind that privacy updates can inflate opens, so pair this metric with click and revenue data.