(And how to tell if your emails are working without overthinking it)
If email marketing feels confusing, heavy, or like a constant source of guilt, I want you to know something straight away:
You are not bad at email.
You're either:
- just looking at too many numbers without enough context
- or not looking at all because you don't know what you're looking for
Most small business owners don’t need deeper analytics or cleverer flows. They need to understand a handful of metrics that quietly tell them whether email is doing its job and what to tweak next.
This blog is your calm guide to the only email stats that actually matter, explained in plain English, with real-life examples.
What email is actually meant to do
Before we talk numbers, let’s reset expectations.
Email has three core jobs:
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Welcome new people
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Bring people back to your website
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Support + bring in sales
That’s it.
So the question your metrics should answer isn’t: “Is my email perfect?”
It’s: “Is my email helping people move?”
Let's get into the key metrics now:
Metric #1:
Open rate (are people interested?)
Open rate tells you how many people opened your email.
Think of it as a signal of interest, not success.
Example:
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You send an email to 1,000 people
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300 people open it
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Your open rate is 30%
For small ecommerce brands, a rough guide is:
-
20–30% is normal
-
30–40% is strong
-
Flows (like welcome emails) are often higher
Open rate is influenced by:
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your subject line
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how recognisable your brand name is
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when you send the email
A lower open rate doesn’t mean your content is bad — it usually means your subject lines need tweaking or your list needs warming up.
Metric #2:
Click rate (this is the big one)
If there’s one metric I care about most, it’s click rate.
Click rate tells you whether your email actually made someone do something.
Example:
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1,000 emails sent
-
20 people click
-
Click rate = 2%
As a general benchmark:
-
1–2% is normal
-
2–4% is strong
-
Flows should usually perform higher than campaigns
Low click rates usually mean:
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the email is too long
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the message isn’t clear
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there’s no obvious next step
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or there are too many links competing for attention
Shorter emails with one clear button often outperform beautifully written essays. This isn’t about creativity — it’s about clarity.
Metric #3:
Email revenue (is it pulling its weight?)
Email revenue shows you how much money email is actually contributing to your business.
This number doesn’t need to be huge to matter.
For example:
-
Total monthly revenue: £5,000
-
Revenue from email: £1,250
That’s 25% of revenue coming from email — which is healthy.
A rough guide:
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20–40% of revenue from email is strong
-
Higher is possible (especially for established brands)
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Lower doesn’t mean email is broken — it means it has room to grow
If email is already making any money, it’s working. Your job is simply to help it work harder.
Metric #4:
List growth (are new people joining?)
Email only works if new people are joining your list.
List growth tells you whether your audience is expanding or quietly shrinking.
In Klaviyo, you’ll often see:
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New subscribers gained (green)
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Unsubscribes + suppressions (red)
The goal is simple: green higher than red.
Example:
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120 new subscribers
-
40 unsubscribes/suppressions
That’s healthy growth.
If growth is slow, it usually points to:
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a weak or invisible sign-up form
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no clear incentive
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or forms that don’t work well on mobile
Metric #5:
Pop-up conversion rate (is your form doing its job?)
Pop-up conversion rate shows how many visitors who see your form actually sign up.
Example:
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1,000 people see your pop-up
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30 people sign up
-
Conversion rate = 3%
Benchmarks:
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1–3% is normal
-
3–5% is strong
-
5%+ is excellent
If desktop converts well but mobile doesn’t, that’s a design issue — not an audience issue.
This metric helps you improve list growth without more traffic.
Metric #6:
Deliverability (are your emails even being seen?)
Deliverability is the quiet one — but it matters more than most people realise.
Your deliverability score tells you how likely your emails are to land in the inbox instead of spam or promotions.
Deliverability improves when you:
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send consistently
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focus on engaged subscribers
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regularly remove inactive or bot profiles
If email performance suddenly drops across the board, deliverability is often the first thing to check not your content.
Think of it like email hygiene. Not glamorous, but essential to performance.
How to use email metrics without spiralling
Here’s the big-sis takeaway:
You do not need to improve everything at once.
Each metric points to one focus:
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Low opens → subject lines or sending consistency
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Low clicks → email clarity and structure
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Low revenue → flows and strategy
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Low growth → sign-up forms
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Low deliverability → list cleanup
Metrics are directions, not verdicts.
Why simple email metrics = better results
When you focus on a few meaningful numbers, email stops feeling emotional and starts feeling manageable.
You know what to tweak.
You know what to ignore.
And you stop blaming yourself for things that are completely normal.
If you want help improving your email metrics without overcomplicating things, this is exactly the work I support small business owners with inside my membership and 1:1. But even just checking these six stats today will already make email feel lighter.
