Revenue Per Subscriber
Revenue per subscriber (RPS) measures the average revenue each email subscriber generates over a specific period. It is a core metric for understanding subscriber lifetime value and email programme health.
Total Email Revenue / Total SubscribersDefinition
Revenue per subscriber (RPS) measures the average revenue generated by each person on your email list over a specific period, typically monthly or annually. It is one of the most important metrics for understanding the financial value of your email programme.
RPS helps you make data-driven decisions about list acquisition costs, content strategy, and segmentation. If you know your RPS, you know how much you can afford to spend acquiring each new subscriber.
Formula
Revenue per subscriber is calculated by dividing total email-attributed revenue by the total number of subscribers.
RPS = Total Email Revenue / Total Subscribers
For monthly RPS:
Monthly RPS = Total Email Revenue in Month / Total Subscribers at End of Month
| Variable | Description |
|---|---|
| Total Email Revenue | Revenue attributed to email campaigns in the period |
| Total Subscribers | Total active subscribers at the end of the period |
Average Benchmark
RPS varies significantly by industry, business model, and average order value.
| Business Type | Monthly RPS |
|---|---|
| Ecommerce (low AOV) | $0.50 - $2.00 |
| Ecommerce (high AOV) | $2.00 - $8.00 |
| SaaS (subscription) | $1.00 - $5.00 |
| Media / Publishing | $0.10 - $0.50 |
| B2B Services | $5.00 - $20.00 |
| Nonprofit | $0.05 - $0.50 |
Annual revenue per subscriber is typically 8-12 times the monthly figure, depending on seasonal variation and retention.
How to Improve Revenue Per Subscriber
- Segment by engagement and value: High-engagement subscribers should receive different content than low-engagement subscribers. Tailor frequency and offers accordingly.
- Nurture new subscribers effectively: The first 30 days of a subscriber's journey set expectations for the entire relationship. Use a welcome sequence that builds trust and drives early conversions.
- Increase email frequency for engaged segments: Subscribers who consistently engage can handle more frequent emails without churning. Test increasing send frequency for your top engagement segment.
- Use behaviour-triggered emails: Automated emails based on subscriber behaviour (abandoned cart, product views, purchase anniversaries) consistently outperform broadcast emails in revenue per subscriber.
- Reduce churn: Every subscriber who unsubscribes or goes inactive reduces your RPS. Focus on delivering consistent value and re-engaging at-risk subscribers before they leave.
- Improve list quality: Higher-quality subscribers acquired through intentional channels (search, referrals, content) have higher RPS than subscribers acquired through low-intent channels (generic pop-ups, purchased lists).
Example Calculation
If you have 8,500 active subscribers and your email programme generates $12,750 in attributed revenue over a month:
Monthly RPS = $12,750 / 8,500 = $1.50
This means each subscriber generated $1.50 on average during that month. If this is consistent, the annual value per subscriber would be approximately $18.00.
Related Tools
- Revenue Per Subscriber Calculator: Calculate subscriber revenue at revenue per subscriber calculator
- Subscriber Lifetime Value Calculator: Estimate long-term subscriber value at subscriber lifetime value calculator
- Email List Value Calculator: See the total value of your list at email list value calculator
Frequently Asked Questions
What is a good revenue per subscriber?
A good RPS depends entirely on your business model and margins. For ecommerce with a $50 average order value, a monthly RPS of $1-$3 is typical. For high-ticket B2B services, RPS can be $10-$50 or more. The most important benchmark is your own RPS trend over time.
How is revenue per subscriber different from revenue per email?
Revenue per email measures the revenue generated by each individual email sent. Revenue per subscriber measures the value of each subscriber over a period. RPS accounts for the fact that some subscribers convert multiple times and receive multiple emails — it is a broader measure of subscriber value.
How do I increase revenue per subscriber without damaging engagement?
Focus on relevance and timing rather than frequency. Use behavioural triggers to send the right message at the right moment. Personalise content based on past purchases and browsing behaviour. Test higher frequencies with engaged segments only. Track both RPS and unsubscribe rate simultaneously so you can spot if growth comes at the cost of churn.
Track Your Revenue Per Subscriber with Real Campaign Data
Connect your email platform and get instant campaign reports. No credit card required.
Start Your 7-Day Free Trial