What Is NPS and Why Your Organization Should Track It

If you have ever received a survey asking "How likely are you to recommend us to a friend or colleague?" on a scale of 0 to 10, you have encountered Net Promoter Score. It is one of the most widely used metrics in business, and there is a good reason it has lasted for over twenty years.

Here is everything you need to know about NPS: what it is, how it works, what the numbers mean, and how to start tracking it today.

What NPS measures

NPS measures loyalty. Not satisfaction, not happiness. Loyalty. The distinction matters because someone can be satisfied with your service but still would not recommend it to someone else. NPS captures that gap.

The concept was introduced by Fred Reichheld in a 2003 Harvard Business Review article called "The One Number You Need to Grow." His research showed that this single question correlated more strongly with revenue growth than any other customer satisfaction metric.

How the scoring works

Respondents answer on a 0 to 10 scale. Based on their answer, they fall into one of three groups:

• Promoters (9 or 10): These are your enthusiasts. They love what you do, they tell other people about it, and they are the engine of your growth. They forgive the occasional mistake because their overall relationship with you is strong.
• Passives (7 or 8): These people are satisfied but not excited. They are not actively recommending you, and they would switch to a competitor if a better option appeared. They are the "it's fine" crowd.
• Detractors (0 through 6): These people are unhappy. They may be actively discouraging others from using your service. Having even one or two detractors in a small organization can have an outsized impact on your reputation.

Your NPS is calculated by a simple formula:

NPS = % Promoters minus % Detractors

The result is a score between -100 and +100. If every single respondent is a detractor, your NPS is -100. If every respondent is a promoter, it is +100.

What the numbers mean

Here is a general framework for interpreting your score:

• Below 0: You have more detractors than promoters. Something is actively pushing people away. This needs immediate attention.
• 0 to 30: This is a decent starting point. You have room to improve, but you are not in crisis. Focus on converting passives into promoters.
• 30 to 50: You are doing well. Most of your audience has a positive relationship with your organization. Keep doing what is working and address specific pain points.
• 50 to 70: Excellent. Your community is loyal and actively advocating for you. This is where word-of-mouth growth really kicks in.
• Above 70: World-class. Companies like Apple, Costco, and USAA consistently score in this range. If you are here, your people love you.

Why the average rating can be misleading

A common mistake is looking at the average score instead of the NPS calculation. For example, imagine four responses: 0, 8, 8, and 10.

The average is 6.5, which sounds decent. But the NPS is 0. You have one promoter (the 10), two passives (the 8s), and one detractor (the 0). That detractor cancels out the promoter entirely.

This is exactly why NPS exists. A simple average hides the fact that you have people at both extremes. NPS surfaces that tension and forces you to deal with it.

NPS is not just for businesses

While NPS was created for commercial businesses, it works for any organization that depends on people coming back and bringing others with them. That includes:

• Churches: "How likely are you to recommend our church to a friend?" captures the essence of whether your community is thriving or stagnating. Growth in most churches comes from personal invitations, and NPS measures exactly that.
• Schools and universities: Student satisfaction surveys with NPS help you understand whether students are proud to be there or counting the days until graduation.
• Nonprofits: Donor and volunteer NPS tells you whether people feel good about giving their time and money to your cause.
• Events: Post-event NPS is one of the best predictors of whether people will attend again and whether they will bring someone next time.

How to start tracking NPS

Adding NPS to your feedback process is straightforward. Here is a simple approach:

Step 1: Create a short survey of 3 to 5 questions. Lead with the NPS question ("How likely are you to recommend us?"), then add 2 or 3 follow-up questions to understand the "why" behind the score. Good follow-ups include "What is the primary reason for your score?" and "What could we do better?"

Step 2: Send it to your audience at a regular interval. Quarterly works well for most organizations. More often than that and you risk survey fatigue. Less often and you miss important shifts.

Step 3: Track the score over time. A single NPS reading is useful, but the real value comes from watching the trend. Did your score go up after you changed your onboarding process? Did it drop after you switched vendors? The trend tells the story.

Step 4: Act on the feedback. This is the step that separates organizations that grow from organizations that stagnate. Reading the responses is not enough. Pick one or two specific things to improve based on what detractors are telling you, make the change, and measure again.

Start measuring today

SurveyThis includes NPS as a built-in question type. You add it to any survey with one click. The results page automatically calculates your NPS score, breaks it down into promoters, passives, and detractors, and shows you the trend over time. Combined with AI analysis, you get not just the score, but a clear explanation of what is driving it.

Create your first NPS survey for free with SurveyThis.