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Email Revenue Leak Calculator
Three inputs, thirty seconds. We compare your email share of revenue against what average and top-quartile brands in your vertical actually do, using benchmarks from the 150+ Klaviyo accounts we manage, and show you what the gap costs every month.
What does your store do in monthly revenue?
What % of that revenue comes from email + SMS today?
In Klaviyo: Analytics, then Attributed revenue, divided by store revenue for the same period. If you genuinely don't know, most brands that haven't checked sit at 10-15%.
What do you sell?
Where does your email revenue come from?
Estimated revenue left on the table
$9,000 to $21,000
per month, up to $252,000 a year
How we got this number
- · You: 15% of $100,000/month from email
- · Other / General average: 20-28% of revenue from email/SMS
- · Top quartile in your vertical: 32-40%
- · The range spans closing the gap to average through reaching the top quartile
The flows vs campaigns split is the first thing we check in an audit. If you don't know yours, there's a good chance nobody is watching it, and that's usually where the leak is.
Benchmarks come from the Klaviyo accounts we manage across 150+ eCommerce brands, the same numbers we publish in our benchmark guides. Your ceiling depends on list size, AOV, and purchase frequency, which is exactly what an audit pins down.
Find the leak, get a free Klaviyo auditWhy the leak is usually in flows, not campaigns
When a brand sits below its vertical benchmark, the cause is almost never "we don't send enough email." It's automated flows that are missing, broken, or three years stale: no browse abandonment, a one-email welcome series, a cart flow that stops at the first message. Flows run 24/7 without anyone pressing send, which is why fixing them moves the percentage fastest. We broke down the seven most common leaks in our Klaviyo revenue leaks teardown.
Want the exact number instead of a range?
The calculator estimates from vertical benchmarks. A real number needs a look inside your account: flow coverage, segment health, deliverability, and where revenue actually attributes. That's the free Klaviyo audit, delivered within 48 hours, and you keep the findings whether we work together or not.
Related reading
- → What % of Revenue Should Come from Email? Benchmarks by Industry
- → The 7 Revenue Leaks We Find in Almost Every Klaviyo Account
- → Klaviyo Flow Grader: Which Flow Gap Is Costing You the Most?
- → DTC Email Benchmarks 2026: Revenue, Open Rates, Flow Conversion
- → Email Marketing ROI: How to Calculate What Email Is Really Worth
Getting ready for Q4?
If the calculator shows a gap, closing it before Black Friday matters twice as much: every point of email share is worth more in peak season. Run the BFCM Readiness Scorecard next to see which specific gaps to close first, then put a number on the season with the BFCM Revenue Projector.