Net promoter score (NPS)
A metric that measures customer satisfaction. It's calculated by asking customers how likely they are to recommend your product to others on a scale of 0-10. NPS can be a useful way to track customer experience and satisfaction over time.
Overview
Net Promoter Score (NPS) is a simple but widely-used metric that quantifies customer loyalty and satisfaction by asking customers a single question: "How likely are you to recommend this product to a friend or colleague?" on a 0-10 scale. Respondents are categorized as Promoters (9-10), Passives (7-8), or Detractors (0-6), and NPS is calculated by subtracting the percentage of Detractors from the percentage of Promoters. Despite its simplicity, NPS has become a standard metric for tracking customer satisfaction, identifying at-risk customers, and predicting business growth—making it valuable for comparing performance over time and benchmarking against competitors.
Why is Net Promoter Score Valuable?
NPS correlates strongly with business growth; companies with higher NPS scores tend to grow faster and retain customers longer, making NPS a useful leading indicator of business health. The metric is simple to understand, quick to administer, and provides a single number that executives and teams can track to assess whether customer satisfaction is improving or declining. NPS also enables customer segmentation—understanding what makes Promoters different from Detractors reveals which customer experiences drive loyalty, informing product and service improvements. By focusing on customers' willingness to recommend rather than satisfaction with individual features, NPS captures overall product-market fit.
When Should NPS Be Measured?
NPS becomes valuable once you have a sufficient customer base to survey, and measuring it regularly reveals trends over time. Measure NPS in these scenarios:
Regular tracking and benchmarking by surveying customers quarterly or biannually to track whether NPS is improving or declining and comparing against industry benchmarks
Post-interaction surveys by measuring NPS after critical moments like completing a purchase, resolving support issues, or using major features to understand which experiences drive loyalty
Product update assessment by measuring NPS before and after significant feature releases or product changes to determine whether changes are improving customer loyalty
Customer segmentation by measuring NPS across customer types, cohorts, or geographies to identify which segments are most satisfied and where to focus improvement efforts
What Are the Drawbacks of Net Promoter Score?
NPS's simplicity is both a strength and weakness—a single question cannot capture complex customer satisfaction across multiple dimensions, potentially missing important problems that don't affect overall recommendation likelihood. Response rates for NPS surveys are often low, introducing sampling bias where respondents aren't representative of the overall customer base. Additionally, NPS doesn't explain why customers are satisfied or dissatisfied, requiring follow-up questions and analysis to understand what's driving scores and what to actually improve. High NPS also doesn't guarantee sustainable growth if customers would recommend the product despite retention or expansion problems underneath.
How to Measure and Use Net Promoter Score Effectively
Getting value from NPS requires going beyond the single metric to understand drivers and take action. Follow these practices:
Pair NPS with follow-up questions asking Promoters why they'd recommend the product and Detractors why they wouldn't; these qualitative insights reveal what matters most to customers
Measure NPS consistently using the same survey methodology, timing, and questions to enable valid comparison over time; changing survey methods makes historical comparison impossible
Segment NPS results by customer type, cohort, industry, or other relevant dimensions to identify where satisfaction is high and low, and which customer segments are most at-risk
Close the loop with customers by following up with Detractors to understand their concerns and show them you're listening and taking action, which itself often improves loyalty
NPS is most valuable when treated as a diagnostic tool that triggers deeper investigation rather than as a vanity metric—the score itself matters less than the insights and actions it prompts.