Net Promoter Score, or NPS, is one of the most widely used customer loyalty metrics in the world. In fact, about two-thirds of Fortune 1000 companies use it. However, many teams stop at the calculation stage. They collect the number, report it in a dashboard, and move on.
That is where the problem begins.
NPS is not valuable because of the score itself. Instead, it is valuable because of what you do with the feedback behind the score.
In this guide, you will learn the exact NPS formula, how to calculate it, what qualifies as a “good” score, industry benchmarks, the difference between relational and transactional NPS, and how to actually improve your score in a systematic way.
- NPS measures advocacy, not satisfaction.
The score tells you how likely customers are to recommend you — which is much closer to long-term growth potential than a satisfaction rating.
- A 'good' NPS is always relative to your industry.
An NPS of 30 is strong for an internet service provider but below average for retail. Always benchmark within your sector, not against a universal scale.
- Use both relational and transactional NPS.
Relational NPS tracks overall brand loyalty quarterly. Transactional NPS fires after specific events to surface friction at individual touchpoints.
- The score is only as valuable as what you do with it.
Close the loop with detractors within 48 hours, convert passives with personalized moments, and activate promoters through referrals and reviews.
- NPS alone doesn't explain why — always add a follow-up question.
Pairing the 0–10 score with 'What is the main reason for your score?' gives you the context needed to actually improve the metric.
What is Net Promoter Score?
Net Promoter Score (NPS) is a customer loyalty metric introduced in 2003 by Fred Reichheld of Bain & Company. It measures how likely customers are to recommend your company to others.
The core NPS question is simple: “On a scale from 0 to 10, how likely are you to recommend [company] to a friend or colleague?”
Based on responses, customers fall into three groups:
- Promoters (9–10): Loyal enthusiasts who actively recommend your brand
- Passives (7–8): Satisfied but not loyal; easily swayed by competitors
- Detractors (0–6): Unhappy customers who may damage your reputation
Your final score ranges from –100 to +100. If everyone is a promoter, you score +100. If everyone is a detractor, you score –100.
The key idea: NPS does not measure customer satisfaction. It measures advocacy, which is much closer to long-term growth potential.
How to calculate NPS
The formula
NPS = % of Promoters − % of Detractors
Passives are not included in the calculation.
Example
Imagine you receive 500 responses:
- 275 Promoters (55%)
- 125 Passives (25%)
- 100 Detractors (20%)
NPS = 55% − 20% = +35
But what does +35 actually mean? That depends on two things: the general scoring scale and your specific industry.
What is a good NPS?
As a rough guide:
- Above 0: Good
- Above 20: Favorable
- Above 50: Excellent
- Above 70: World-class
However, these ranges only tell part of the story. An NPS of 30 can mean very different things depending on your industry. A 2024 study by the Qualtrics XM Institute analyzed 354 companies across 22 industries. Grocers had the highest average NPS at 34.3, while car rental companies ranked lowest at 15.8.
Instead of asking “Is my NPS good?”, the better question is “Is my NPS good for my industry?”
NPS benchmarks by industry
A few things stand out across major industry reports: Technology & Services companies pull ahead with an average of 66, while internet service providers and car rental companies hover around 16 — a 50-point gap between the top and bottom.
Why industry context matters
An NPS of 30 in the Internet Service Provider industry is strong. An NPS of 30 in retail is below average. If you benchmark against a universal “good” score, you’ll misjudge performance. Always compare against your own industry first.
How to find your industry benchmark
Three solid free resources to start with:
- Qualtrics XM Institute (annual study covering 22 industries)
- Survicate NPS Benchmarks Report (updated yearly with real survey data)
- Retently’s NPS Benchmark page (covers B2B and B2C separately)
For deeper competitor-level data, Bain’s NPS Prism offers paid benchmarking with quarterly updates across 10+ industries.
Transactional NPS vs relational NPS
Not all NPS surveys measure the same thing. There are two types, and they answer different questions.
Relational NPS
Sent periodically — usually quarterly or annually — to measure the overall relationship with your brand. Best for tracking loyalty trends, executive-level reporting, and long-term brand monitoring.
Transactional NPS
Fires after a specific event: a purchase, a support ticket, onboarding completion. It captures how the customer felt about that particular experience. Best for identifying problems at specific touchpoints.
Which one should you use?
Most companies need both. Relational tells you the big picture. Transactional tells you where the problem is.
In a SaaS customer experience environment, transactional surveys often reveal onboarding friction that relational surveys never surface. Customers can be generally positive about a brand while the first-week setup is still frustrating. Fixing onboarding improves both transactional and relational scores within two quarters.
How to collect NPS responses
Collection channels
- Email surveys: The most common method. Easy to automate, good for high volume, and works well for relational NPS.
- In-app pop-ups: If you run a SaaS product or digital platform, this is your best bet. Response rates are significantly higher because you’re catching customers while they’re already engaged.
- Post-purchase or post-interaction triggers: Perfect for transactional NPS. The experience is fresh, so the feedback is more accurate.
- SMS surveys: Great for mobile-first audiences. Short, quick, and hard to ignore — works especially well for retail and delivery businesses.
- Post-call IVR: Captures feedback right after a phone support conversation ends.
Survey best practices
Keep your survey short. Ideally:
- The NPS score question
- A follow-up: “Why did you give this score?”
- Optional permission for contact
Timing matters: transactional NPS within 24 hours, relational NPS quarterly. Avoid survey fatigue by using a staggered distribution method — surveying 1/90th of your base daily keeps feedback consistent without overwhelming customers.
NPS vs CSAT vs CES
NPS isn’t the only customer experience metric. CSAT and CES each measure something different.
- NPS asks: “Are they loyal?”
- CSAT asks: “Were they happy right now?”
- CES asks: “Was it easy?”
A customer can give you an NPS of 9 (loyal promoter) but a CSAT of 2 on their last support interaction. Without CSAT, you’d miss the signal that something in your support process is broken. Similarly, CES captures friction that neither NPS nor CSAT captures — if customers find it painful to set up accounts or process returns, CES will surface that problem faster.
The strongest CX programs use all three as part of a broader customer service metrics strategy, deployed at different points in the customer journey.
How to improve your NPS
Reduce detractors
First, analyze common complaints — usually a few issues drive most negative feedback. Then close the loop quickly. Contact unhappy customers within 48 hours: acknowledge the issue, explain what happened, and offer a solution. Personal follow-ups often change customer perception. Many customers simply want to feel heard.
Convert passives
Passives are satisfied but not loyal — at risk of switching. To move them into promoters, create moments that stand out. Personalize communication or celebrate milestones. At Chatty, merchants have turned passives into promoters with something as simple as a personalized check-in message after their first 100 customer conversations. Small gestures, big impact.
Activate promoters
Promoters are your strongest advocates. Invite them to refer friends, leave reviews, and join case studies. Don’t ignore them — if value declines, promoters can quickly become passive.
Improve the system
Four systemic changes move NPS the most:
- Strengthen onboarding. First impressions set the tone for the entire relationship. A confusing setup experience creates detractors before customers even use your product properly.
- Empower frontline teams. When support agents can resolve issues without escalation, resolution time drops and customer satisfaction jumps.
- Feed NPS data into your product roadmap. If the same complaints keep appearing in detractor feedback, that’s a product problem, not a support problem.
- Make it a company-wide metric. NPS shouldn’t live solely on the support team’s dashboard. Product, marketing, and leadership all need to see it and own it.
NPS improves only when feedback drives action.
Limitations of NPS
- A single score does not explain the cause. An NPS of 35 shows your position but not why customers feel that way. Always add a follow-up question.
- Cultural bias can distort results. Scoring habits differ by country — Japanese customers rarely give 9s or 10s, while American customers give them more easily. Comparing raw NPS across regions can be misleading.
- Sample bias affects accuracy. Unhappy customers are often more motivated to respond, which can skew your NPS lower than reality.
- NPS alone does not drive improvement. According to Reichheld’s NPS 3.0 framework, the score must be supported by closed-loop feedback, frontline empowerment, and leadership accountability. Otherwise, it remains just a number.
Think of NPS as a thermometer: it tells you the temperature but doesn’t explain the cause or provide the cure. Without a system around it, NPS becomes vanity reporting.
Final thoughts
NPS is a starting point, not the final goal. The real value lies in what you do after collecting the score.
If you listen carefully, follow up consistently, and fix systemic issues, NPS becomes a growth tool. Otherwise, it remains just a number.
FAQ
It depends on your industry. Generally, above 50 is excellent. Always benchmark within your sector.
Relational NPS quarterly. Transactional within 24 hours of key interactions.
Yes. A negative score means you have more detractors than promoters. It signals serious loyalty risk.
NPS measures customer loyalty. eNPS measures employee loyalty using the same 0–10 scale.
