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Referral Marketing Glossary

Net Promoter Score (NPS)

Net Promoter Score (NPS) is a customer loyalty metric that measures how likely customers are to recommend your product or service to others, scored on a scale from -100 to +100.

Net Promoter Score (NPS) is a widely used metric that gauges customer loyalty and satisfaction by asking one simple question: "How likely are you to recommend our product or service to a friend or colleague?" Respondents answer on a scale of 0 to 10, and their answers categorize them into three groups.

How NPS Works

Based on their responses, customers fall into three categories:

  • Promoters (9-10): Loyal enthusiasts who will keep buying and refer others, fueling growth.
  • Passives (7-8): Satisfied but unenthusiastic customers who are vulnerable to competitive offerings.
  • Detractors (0-6): Unhappy customers who can damage your brand through negative word-of-mouth.

The NPS is calculated by subtracting the percentage of Detractors from the percentage of Promoters:

NPS = % Promoters - % Detractors

For example, if 60% of respondents are Promoters and 20% are Detractors, your NPS is 40.

Why NPS Matters

NPS is more than just a vanity metric. It serves as a leading indicator of growth potential:

  • Predicts growth: Companies with high NPS scores tend to grow faster because satisfied customers drive organic referrals and word-of-mouth marketing.
  • Identifies at-risk customers: Detractors signal churn risk, giving you an opportunity to intervene before customers leave.
  • Benchmarks performance: NPS allows you to compare your customer satisfaction against industry peers and track improvements over time.
  • Guides product development: Follow-up questions to NPS surveys reveal specific areas for improvement.

NPS Benchmarks

NPS scores range from -100 to +100. Generally, a score above 0 is acceptable, above 30 is good, above 50 is excellent, and above 70 is world-class. However, benchmarks vary significantly by industry. SaaS companies typically see average NPS scores between 30 and 40.

NPS and Referral Programs

NPS is directly linked to referral potential. Your Promoters are the ideal candidates for referral programs because they are already enthusiastic about your product. By identifying Promoters through NPS surveys and inviting them to participate in a referral program, you can systematically convert their goodwill into measurable customer acquisition. This approach transforms a passive metric into an active growth engine.

Best Practices for NPS Surveys

  • Survey at the right time: Send NPS surveys after key milestones such as onboarding completion, a successful support interaction, or a subscription renewal.
  • Follow up: Always ask a follow-up question to understand the reasoning behind the score.
  • Close the loop: Act on feedback, especially from Detractors, to demonstrate that you value customer input.
  • Track trends: Focus on NPS trends over time rather than individual scores.

How GrowSurf Helps

GrowSurf helps you capitalize on your Net Promoter Score by converting Promoters into active referral advocates. With GrowSurf's 60+ integrations including HubSpot and other CRM tools, you can automatically enroll high-NPS respondents into your referral program. The white-label referral portal gives Promoters a seamless, branded experience for sharing referral links. GrowSurf's referral analytics dashboard lets you track how NPS-identified Promoters perform as referral sources, connecting satisfaction data to actual acquisition outcomes. Automated reward fulfillment ensures Promoters are instantly recognized for successful referrals, reinforcing their advocacy.

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FAQ

What is a good Net Promoter Score?

A good NPS varies by industry, but generally a score above 30 is considered good, above 50 is excellent, and above 70 is world-class. For SaaS companies, the average NPS typically falls between 30 and 40. The most important thing is to track your NPS trend over time.

How often should you measure NPS?

Most companies measure NPS quarterly or after key customer interactions such as onboarding, support tickets, or renewals. Transactional NPS (measured after specific events) and relational NPS (measured periodically) serve different purposes and can be used together for a complete picture.

How is NPS connected to referral programs?

NPS directly identifies your most likely referral sources. Promoters (those scoring 9-10) are already enthusiastic about your product and are natural candidates for referral programs. By targeting Promoters with referral invitations, you can systematically turn satisfaction into measurable growth.

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