Measuring Customer Retention in 2025: Top Metrics, KPIs & Benchmarks That Matter

Tie Soben
8 Min Read
Track the right metrics to turn customers into lifelong fans.
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In 2025, customer retention is no longer just a customer service goal—it’s a growth strategy. As acquiring new customers becomes more expensive, businesses must shift their focus toward keeping the customers they already have. According to Bain & Company (2024), increasing customer retention by just 5% can lead to a 25% to 95% increase in profits.

But here’s the challenge: You can’t improve what you don’t measure.

This article breaks down the most important customer retention metrics, KPIs, and industry benchmarks that every business should track—and how to use them to build long-term loyalty and profitability.

Why Measuring Retention Is Critical in 2025

Customer acquisition costs (CAC) have skyrocketed in recent years. Forbes (2023) reports that acquiring a new customer can cost 5 to 7 times more than retaining an existing one. Meanwhile, repeat customers tend to:

  • Spend more per transaction
  • Refer new customers more often
  • Engage with your brand more consistently

Despite this, many businesses still focus heavily on acquisition, while overlooking retention data. This creates blind spots that hurt growth and customer satisfaction. Measuring retention allows you to:

  • Identify at-risk customers before they churn
  • Track the effectiveness of loyalty programs
  • Increase customer lifetime value (CLV)
  • Improve the overall customer experience

1. Customer Retention Rate (CRR)

Definition: The percentage of customers your business retained over a given time period.

Formula:
CRR = ((E − N) / S) × 100
Where:

  • E = number of customers at the end of the period
  • N = number of new customers during the period
  • S = number of customers at the start of the period

Example:
If you started with 1,000 customers, gained 200, and ended with 1,050:
CRR = ((1050 − 200) / 1000) × 100 = 85%

Benchmark:

  • 70–80% retention is average for most industries
  • >90% is excellent for SaaS and subscription models (HubSpot, 2024)

Tools: ChartMogul, ProfitWell

2. Customer Churn Rate

Definition: The percentage of customers lost during a specific time period.

Formula:
Churn Rate = (Customers lost / Customers at start) × 100

Example:
Started with 1,000 customers, lost 80:
Churn Rate = (80 / 1000) × 100 = 8%

Benchmark:

  • Monthly churn of <5% is ideal for SaaS
  • Annual churn of <30% is typical for e-commerce (Invesp, 2024)

Insight: High churn often signals poor onboarding, product-market fit issues, or poor customer service.

3. Repeat Purchase Rate (RPR)

Definition: The percentage of customers who make more than one purchase.

Formula:
RPR = (Repeat customers / Total customers) × 100

Benchmark:

  • 20–40% is healthy for e-commerce
  • >50% is elite (Shopify, 2024)

Tool: Shopify Analytics, Google Analytics

Tip: Use RPR to evaluate loyalty campaigns, upsell strategies, and post-purchase experiences.

4. Customer Lifetime Value (CLV)

Definition: The total revenue a business can expect from one customer throughout their entire relationship.

Formula (basic):
CLV = Average Purchase Value × Purchase Frequency × Customer Lifespan

Benchmark:
A CLV:CAC ratio of 3:1 is ideal. Anything lower may indicate over-spending on acquisition (McKinsey & Company, 2024).

Tool: Reforge’s LTV Calculator

5. Net Promoter Score (NPS)

Definition: A measure of how likely customers are to recommend your brand to others.

Survey Question:
“How likely are you to recommend us to a friend or colleague?” (Scale: 0–10)

  • Promoters: 9–10
  • Passives: 7–8
  • Detractors: 0–6

Formula:
NPS = % of Promoters − % of Detractors

Benchmark:

  • 30–50 for SaaS
  • 40–60 for e-commerce
  • >60 for hospitality (Qualtrics, 2024)

Tool: Delighted, SurveyMonkey

6. Time Between Purchases

Definition: The average time between two purchases from the same customer.

Why it matters: A shorter interval indicates higher engagement and better customer satisfaction.

Benchmarks:

  • Coffee subscription: 2–4 weeks
  • Skincare: 30–60 days
  • Apparel: 90–120 days
    (Source: ReCharge, 2024)

Tool: Klaviyo

7. Loyalty Program Engagement Rate

Definition: The percentage of customers actively participating in your rewards program.

Formula:
Engagement Rate = (Active Loyalty Members / Total Members) × 100

Benchmark:
Top programs see 30–50% engagement (Smile.io, 2024)

Tool: Smile.io, LoyaltyLion

8. Customer Satisfaction Score (CSAT)

Definition: A measure of customer satisfaction for a specific interaction.

Survey Prompt:
“How satisfied were you with your experience?” (1–5 or 1–10 scale)

Formula:
CSAT = (Positive responses / Total responses) × 100

Benchmark:

  • 75–85% is good
  • >90% is excellent (Qualtrics, 2024)

9. First Contact Resolution Rate (FCR)

Definition: The percentage of customer support issues resolved in the first interaction.

Why it matters: High FCR = efficient support and happier customers.

Benchmark:

  • 70–80% in most industries (Salesforce, 2024)

Tool: Zendesk, Freshdesk

10. Customer Health Score (CHS)

Definition: A predictive score combining usage, support, feedback, and engagement data to identify customer satisfaction levels.

Why it matters: Helps flag high-risk customers before they churn.

Tool: Gainsight, Totango

Impact: Harvard Business Review (2024) reports that companies using CHS reduced churn by 20% or more.

How Often Should You Track These Metrics?

MetricTracking Frequency
CRR, ChurnMonthly
CLVQuarterly
NPS, CSATMonthly/Quarterly
RPR, Loyalty EngagementMonthly
CHSWeekly–Monthly

How to Use These Metrics to Improve Retention

  • Low NPS or CSAT? → Improve customer support and product experience
  • High churn? → Optimize onboarding and post-purchase journeys
  • Weak loyalty engagement? → Rethink reward structure
  • Low CLV? → Focus on upselling, cross-selling, and subscription offers

Metrics should lead to actionable insights—not just reporting. Use them to test, improve, and repeat.

Note

In 2025, customer retention is about data, personalization, and consistency. The best brands don’t just guess what keeps customers—they measure it.

By tracking metrics like CRR, NPS, CLV, and churn, you’ll uncover what’s working and where to improve. More importantly, you’ll build stronger relationships that lead to long-term growth.

Start now. Know your numbers. Turn insight into loyalty.

References

Bain & Company. (2024). Repeat customer spending behavior report. https://www.bain.com/

Forbes. (2023). Customer retention vs acquisition cost analysis. https://www.forbes.com/

Harvard Business Review. (2024). Predictive analytics for churn reduction. https://hbr.org/

HubSpot. (2024). CRM and customer retention trends report. https://www.hubspot.com/

Invesp. (2024). Customer retention and automation statistics. https://www.invespcro.com/

McKinsey & Company. (2024). The personalization payoff. https://www.mckinsey.com/

Qualtrics. (2024). State of customer experience. https://www.qualtrics.com/

ReCharge. (2024). Customer purchase behavior insights. https://rechargepayments.com/

Salesforce. (2024). State of the connected customer report. https://www.salesforce.com/

Shopify. (2024). E-commerce benchmark report. https://www.shopify.com/

Smile.io. (2024). Loyalty program engagement benchmark report. https://smile.io/

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