Core Metrics & KPIsNPS

Net Promoter Score

A customer loyalty metric measuring likelihood to recommend on a 0-10 scale.

1 min readLast updated Apr 2026
Reviewed by Golden Digital·Operator-reviewed ecommerce reference·Benchmark source: Golden Digital field data

A customer loyalty metric measuring likelihood to recommend on a 0-10 scale.

Why It Matters

NPS predicts customer behavior better than satisfaction scores because it measures advocacy. Promoters spend more, refer others, and have higher LTV. Detractors churn faster and damage your reputation. Tracking NPS reveals customer health that financial metrics show later.

Benchmarks

A good NPS is 45-50. Top performers achieve 70+.

Good Performance

45-50

Top Performers

70+

Practical Example

Scenario

A D2C brand surveys 1,000 customers. Results: 450 Promoters (9-10), 350 Passives (7-8), 200 Detractors (0-6).

Calculation

NPS = (450/1,000 × 100) - (200/1,000 × 100) = 45 - 20 = +25

Result

An NPS of +25 is decent but has room for improvement. They investigate detractor feedback, finding shipping delays are the main issue. After fixing, NPS rises to +42.

In-Depth Explanation

Promoters (9-10) minus Detractors (0-6) = NPS. Passives (7-8) are excluded.

Pro Tips

  • 1Always follow up with 'Why?' after the score. The qualitative feedback is more actionable than the number itself.
  • 2Segment NPS by touchpoint: post-purchase NPS vs post-support NPS vs overall relationship NPS reveal different insights.
  • 3Close the loop with detractors. A personal response can convert detractors to promoters—they often become most loyal.
  • 4Track NPS by cohort over time. Are customers getting happier or more frustrated as they stay longer?

Common Mistakes to Avoid

Obsessing over the NPS number without acting on feedback. The value is in what you DO with detractor insights.
Survey timing that skews results. NPS right after unboxing is inflated; after a problem is deflated. Be consistent.
Only surveying happy customers. If your survey is triggered by positive actions, you'll miss detractors entirely.

Frequently asked questions

Above 0 is okay (more promoters than detractors). 30-50 is good. 50-70 is excellent. 70+ is world-class. However, industry context matters—compare against your sector's benchmarks.

Transactional NPS: after each purchase/interaction. Relationship NPS: quarterly or biannually. Don't over-survey the same customers—survey fatigue reduces response rates and accuracy.

Put it to work

Related Terms

Customer Satisfaction ScoreCSAT

A direct measure of customer satisfaction, typically rated 1-5 after specific interactions.

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