B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
36x
36x -- email marketing roi for ecommerce brands (2025)
Email-driven retention campaigns average a 36:1 ROI for ecommerce brands.
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
36x
Unit
Ratio
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Sources (2)
Klaviyo
Primary
Tier B
https://webmedic.com/customer-retention-cost-guide ↗
Source Article
Customer Retention vs Acquisition Cost | WebMedic
Is your store leaking revenue?
Find out exactly where you're losing sales — takes 2 minutes.
The real math behind keeping customers versus finding new ones
What Is the Cost of Customer Retention?
Retention is cheaper. Always.
The cost of customer retention is the total spend required to keep an exis…
Also cited by
2026-09-17
Original Research
Klaviyo
· Original study ↗
Methodology
Klaviyo 2025 benchmark report
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
ecommerce brands: 36x email marketing roi. Source: Klaviyo (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/klaviyo-email-roi-2025
HTML Embed
<blockquote cite="https://lighthousedata.io/data/klaviyo-email-roi-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>36x</strong> -- email marketing roi for ecommerce brands<br><small>Source: Klaviyo (2025) · <a href="https://lighthousedata.io/data/klaviyo-email-roi-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Related Statistics
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.