The Net Promoter Score is the gold standard for measuring customer loyalty. Learn how to calculate, interpret, and leverage it to turn buyers into brand advocates.

The Net Promoter Score (NPS) is a customer satisfaction metric that measures how likely your customers are to recommend your brand to others. Created in 2003 by Fred Reichheld, it has become one of the most widely used KPIs in e-commerce for evaluating customer loyalty.
NPS is based on one simple question: "On a scale of 0 to 10, how likely are you to recommend our brand to a friend or colleague?"
NPS calculation categorizes respondents into three groups:
NPS Formula: % Promoters - % Detractors = NPS Score
The score ranges from -100 (all detractors) to +100 (all promoters). An NPS above 0 is considered good, above 50 is excellent.
Customer satisfaction NPS directly correlates with business growth. Studies show that companies with high NPS experience 2x faster growth than competitors.
In e-commerce, a strong NPS means:
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