What is Net Promoter Score (NPS)?

Why It Matters

NPS gives a fast, comparable read on customer sentiment that's simple enough for an entire company, not just a data team, to track and understand. Because it's built from a single survey question, it's cheap to collect regularly, which makes it useful as a leading indicator that often moves before harder metrics like churn or expansion revenue actually show a change. A declining NPS is an early warning that customer sentiment is souring even if usage numbers still look fine that quarter, giving a team time to react before it shows up in the revenue metrics. Ignoring NPS in favor of only trailing financial metrics means problems get caught later, after they've already cost the business retained customers or referrals. Because promoters are also a business's most likely source of referrals and case studies, tracking the promoter share specifically connects NPS directly to organic growth, not just retention.

Example

Out of 200 survey responses, 120 respondents score 9 or 10, counting as promoters, 50 score 7 or 8, counting as passives, and 30 score 0 through 6, counting as detractors. Promoters are 60% of responses and detractors are 15%, so NPS is 60 minus 15, which equals 45. Scores range from negative 100, if every respondent were a detractor, to positive 100, if every respondent were a promoter, and a positive score is generally seen as a good sign, while anything above 50 is considered excellent in most industries.

Frequently Asked Questions

• What do the promoter, passive, and detractor categories mean?

  Promoters score 9 or 10 and are considered your most loyal, likely-to-refer customers. Passives score 7 or 8 and are satisfied but not enthusiastic enough to actively promote you, and detractors score 0 through 6 and are unhappy customers who could hurt your reputation through negative word of mouth.

• Why are passives excluded from the NPS formula?

  Passives are deliberately left out of the calculation because they're considered neutral, not actively helping or hurting the business through referrals. The score is specifically the gap between the enthusiastic promoters and the unhappy detractors, which is what makes it a loyalty measure rather than a simple satisfaction average.

• What counts as a good NPS score?

  Any positive score means promoters outnumber detractors, which is generally seen as healthy, while a score above 50 is considered excellent in most industries. What counts as good varies by industry, so NPS is often most useful when tracked over time or benchmarked against direct competitors rather than judged against a single universal number.

• How often should NPS be measured?

  Many companies run NPS surveys quarterly or after key customer milestones, like a support interaction or renewal, rather than continuously. Surveying too frequently can fatigue customers and depress response rates, which is why cadence is usually balanced against getting a large enough, representative sample.

• How is NPS different from customer retention rate?

  NPS measures stated sentiment and likelihood to recommend, a leading indicator based on survey responses, while customer retention rate measures actual behavior, whether customers stuck around. A company can have a decent NPS while still losing customers for reasons unrelated to loyalty, like pricing or budget cuts, so the two are usually reviewed together.