Every Klaviyo Metric Explained: What They Mean and What's Good

Klaviyo's analytics dashboard shows you a wall of numbers. Open rate, click rate, conversion rate, revenue, bounce rate, unsubscribe rate, spam complaints, delivered rate, click-to-open rate... the list goes on.

Some of these metrics are vital. Some are vanity. Some are misleading. And most brands focus on the wrong ones while ignoring the numbers that actually predict revenue growth.

This guide explains every metric Klaviyo reports, what "good" looks like for eCommerce brands, and which metrics deserve your attention versus which ones are noise.

The Metrics That Actually Matter

Let's start with the metrics that directly correlate with email revenue. These are your priority dashboard.

Revenue Per Recipient (RPR)

What it is: Total revenue generated divided by total recipients of the email.

Why it matters: This is the ultimate metric. It accounts for list size, engagement, AND conversion. A high RPR means your email is reaching the right people with the right message at the right time.

Benchmarks:

• Campaigns: $0.05-0.15 RPR is average. $0.20+ is strong.
• Flows: $0.50-2.00+ RPR depending on flow type (abandoned cart flows have the highest RPR)

What moves it: Better segmentation (sending to the right people), better offers (giving them a reason to buy), and better timing (when they're ready).

Click Rate

What it is: Unique clicks divided by total delivered emails.

Why it matters: Clicks indicate genuine engagement. Someone who clicks is actively interested in what you're showing them. Unlike open rate (which is increasingly unreliable), clicks require deliberate action.

Benchmarks:

• Campaigns: 1.5-3% is average. 3-5% is strong. 5%+ is excellent.
• Flows: 3-8% is average (higher because flows are behavior-triggered and more relevant).

What moves it: Compelling CTAs, relevant product recommendations, clear value propositions, and mobile-optimized design.

Conversion Rate (from email)

What it is: Number of purchases attributed to the email divided by number of recipients.

Why it matters: This is the bridge between engagement and revenue. Someone can open and click all day — if they don't buy, it doesn't matter.

Benchmarks:

• Campaigns: 0.02-0.05% is average. 0.1%+ is strong.
• Flows: 0.5-3% depending on flow type. Abandoned cart flows often hit 3-5%.

What moves it: Offer strength, landing page quality, product-market fit for the audience, and checkout optimization.

List Growth Rate

What it is: New subscribers minus unsubscribes and bounces, divided by total list size, per period.

Why it matters: Your list is a depreciating asset. People unsubscribe, disengage, and become unreachable over time. If you're not growing faster than you're losing, your email channel is shrinking.

Benchmarks: 5-10% monthly growth is healthy for active eCommerce brands. Below 3% means your list-building efforts need attention.

What moves it: Popup conversion rate, landing page opt-ins, checkout opt-ins, and list hygiene (removing dead weight vs. losing engaged subscribers).

The Engagement Metrics

These indicate health but don't directly drive revenue.

Open Rate

What it is: Unique opens divided by delivered emails.

The catch: Apple's Mail Privacy Protection (MPP) pre-opens all emails for Apple Mail users, inflating open rates by 10-30% depending on your audience's Apple usage. This makes open rate increasingly unreliable as a standalone metric.

Benchmarks (post-MPP): 35-50% is typical for eCommerce. But compare trend over time rather than obsessing over absolute numbers. A declining open rate signals problems regardless of the starting point.

When it's useful: For relative comparison. Testing subject lines (A vs. B), comparing campaigns to each other, and watching for sudden drops that signal deliverability issues.

Click-to-Open Rate (CTOR)

What it is: Unique clicks divided by unique opens.

Why it's useful: CTOR measures how compelling your email CONTENT is for people who actually saw it. Open rate measures subject line effectiveness. CTOR measures body content effectiveness.

Benchmarks: 8-15% CTOR is average for eCommerce campaigns. 15%+ is strong.

What moves it: Content relevance, design quality, CTA clarity, and mobile optimization.

Unsubscribe Rate

What it is: Unsubscribes divided by delivered emails.

Benchmarks: Below 0.2% per campaign is healthy. 0.2-0.5% is concerning. Above 0.5% per send means something is wrong — content mismatch, sending too often, or reaching disengaged subscribers.

When to worry: A sudden spike in unsubs (2-3x your normal rate) signals a problem with that specific email — wrong audience, irrelevant content, or sending to a cold segment.

When NOT to worry: A steady trickle of 0.1-0.2% per send is normal and actually healthy. People whose preferences have changed are self-selecting out. This keeps your list cleaner.

Bounce Rate

What it is: Bounced emails (failed delivery) divided by total sent.

Types: Hard bounces (email doesn't exist, permanent failure) vs. soft bounces (inbox full, temporary failure). Klaviyo auto-suppresses hard bounces.

Benchmarks: Below 0.5% is healthy. Above 2% signals list hygiene problems — you're sending to addresses that don't exist.

What to do: If bounce rate is high, clean your list. Remove addresses that haven't engaged in 6+ months. Check recent imports for data quality issues.

Spam Complaint Rate

What it is: Spam complaints (recipients who hit "Mark as Spam") divided by delivered emails.

Benchmarks: Below 0.01% (1 in 10,000). Above 0.03% risks deliverability damage. Above 0.1% means you have a serious problem.

What triggers complaints: Emailing people who don't remember signing up, sending too frequently, irrelevant content, or making it hard to unsubscribe (people hit spam when they can't find unsubscribe).

Flow-Specific Metrics

Flow Revenue

What it is: Total revenue attributed to all flow emails.

Benchmark: Flow revenue should be 25-40% of total email revenue. If it's below 20%, your flows are underperforming or you're missing key flows. If it's above 50%, your campaigns might need more attention.

Placed Order Rate (by flow)

What it is: Percentage of people who enter a flow and eventually make a purchase attributed to that flow.

Benchmarks by flow type:

• Abandoned cart: 3-8% placed order rate
• Welcome series: 2-5%
• Browse abandonment: 0.5-2%
• Post-purchase cross-sell: 1-3%
• Winback: 1-3%

Revenue Per Flow Entry

What it is: Total flow revenue divided by total people who entered the flow.

This is the flow equivalent of Revenue Per Recipient for campaigns. It tells you how much each flow entry is worth on average.

The Metrics You Can Safely Ignore

Delivered rate. Unless it drops below 95%, it's not actionable. Shopify-Klaviyo integration handles most deliverability basics.

Forward rate. How many people forwarded your email. Interesting but not actionable and statistically tiny.

Device breakdown. Mobile vs. desktop opens. Good to know for design decisions but not a performance metric.

Time of open. When people open your emails. Interesting for send-time optimization but low-priority compared to content and segmentation.

Building Your Weekly Dashboard

Check these metrics weekly:

Monday: Campaign performance from last week (RPR, click rate, unsub rate) Monthly: Flow performance (revenue by flow, placed order rates, flow RPR) Quarterly: List health (growth rate, engagement tiers, churn rate, deliverability trend)

Don't check metrics daily. Daily fluctuations are noise. Weekly and monthly trends are signal.

What To Do Right Now

Log into Klaviyo. Go to Analytics, then Campaigns. Sort by Revenue Per Recipient. Your top 5 campaigns by RPR are your best performers — study what they did differently. Your bottom 5 are your worst — figure out what went wrong.

Then check your flow performance. If any core flow (abandoned cart, welcome, post-purchase) has a placed order rate below the benchmarks above, that's your priority optimization target.

If you want help making sense of your Klaviyo data and turning metrics into actionable strategy — book a call with our team. We'll analyze your email performance and show you exactly where the revenue opportunities are hiding.