Email Marketing ROI Calculator

What is email marketing ROI?

Email marketing ROI (return on investment) tells you how much money your emails bring in compared to what you spend on them. It's usually written as "$X for every $1 spent." If you spend $2,000 a month on email and it brings in $20,000 in sales, that's $10 in sales for every $1.

That number counts sales, not profit. For an e-commerce brand, the more useful question is how much profit email makes after product costs. The calculator above shows you both.

How to calculate email marketing ROI

There are two ways to measure it. Most tools only show the first one.

1. Sales ROI (the number most people quote)

2. Profit ROI (what actually ends up in your bank)

Example

Your emails bring in $20,000 a month. You pay $400 for Klaviyo and $1,600 for an agency, so $2,000 in total. Your profit margin is 50%.

• Sales ROI: $20,000 ÷ $2,000 = $10 in sales for every $1
• Profit from those sales: $20,000 × 50% = $10,000
• Profit after email costs: $10,000 − $2,000 = $8,000 a month
• Profit ROI: $8,000 ÷ $2,000 × 100 = 400%

What is a good email marketing ROI?

The most widely quoted benchmark comes from Litmus: on average, email brings in about $36 for every $1 spent. Retail and e-commerce brands often do better, because automated flows like abandoned cart emails turn directly into sales.

Use it as a rough guide, not a target:

Keep in mind that the $36 figure usually counts platform costs only. If you include agency fees or salaries, as this calculator does, a lower number can still be healthy. What matters most is that email makes a profit. New brands with small lists often start lower, and that's normal. Your list, and the revenue it brings in, grows over time.

How to find your email revenue

• Klaviyo: your home dashboard shows attributed revenue for a date range, split into campaigns and flows. Use the last 30 days.
• Shopify Email: go to Marketing in your Shopify admin and look at sales for your email campaigns and automations.
• Omnisend or Mailchimp: both show revenue from campaigns and automations in their reports once your store is connected.

Email platforms tend to give email credit for any sale that happens within a few days of someone opening or clicking an email. Some of those sales would have happened anyway, so treat the number as a best case.

What costs to include

Leaving costs out makes your ROI look better than it is. Add up everything you spend on email in a month:

• Your email platform plan (Klaviyo, Omnisend, Mailchimp, etc.)
• Agency or freelancer fees: retainers, designers and copywriters
• Extra tools like pop-up apps, list-building tools or template builders
• In-house salaries: annual salary ÷ 12 × the share of time spent on email. A $60,000 marketer spending half their time on email costs $2,500 a month.

Discounts you give in emails are already taken off your revenue, so don't count them twice.

Team costs are usually the biggest cost, and most ROI figures you see online leave them out. Once you include them, your ROI will look lower than the $36 average. That's expected, and it's the more honest number.

Email marketing ROI vs. social media and paid ads

Email usually shows a much higher ROI than social media or paid ads. That's because you don't pay per email sent. You pay a monthly fee, and the list you own keeps making money.

Paid ads work differently: you pay for every click, so returns are measured as ROAS (return on ad spend), and a 2–4x ROAS can be very profitable. The two work together. Ads bring new customers in, and email gets them to buy again. To see what ROAS your ads need, use our Break-Even ROAS Calculator.

How to improve your email marketing ROI

1. Set up the core automated flows first: welcome series, abandoned cart, browse abandonment, post-purchase and win-back. They run every day without extra work.
2. Grow your list with a sign-up pop-up on your store, and give people a reason to join.
3. Segment your list so buyers, non-buyers and VIP customers get different emails.
4. Send consistently. Brands that send one campaign a month leave sales on the table.
5. Clean your list of people who haven't opened in months. It lowers your platform bill and helps your emails reach the inbox.

Is email marketing worth it?

For almost every e-commerce brand, yes. It's one of the cheapest ways to get repeat sales from people who already know you. If the calculator shows you're losing money, it's usually because the list is too small or the costs are too high for how often you send. Cut costs or fix your flows before giving up on it.