NPS Calculator

NPS Calculator

Updated May 27, 2026 By Jehan Wadia

Introduction

Net Promoter Score (NPS) is a simple number that tells you how your customers feel about your business. It ranges from -100 to +100. To find it, you ask customers one question: "How likely are you to recommend us to a friend?" They pick a number from 0 to 10. People who pick 9 or 10 are called Promoters — they love your brand. Those who pick 7 or 8 are Passives — they are okay but not excited. Anyone who picks 0 to 6 is a Detractor — they are not happy. Your NPS equals the percentage of Promoters minus the percentage of Detractors.

This free NPS calculator does all the math for you in seconds. Just enter your survey results and get your score right away. You can use Simple Mode if you already know how many Promoters, Passives, and Detractors you have. Or switch to Detailed Mode to enter the exact count for each score from 0 to 10. The tool also shows charts, a breakdown table, and industry benchmarks so you can see how your score compares to other businesses.

How to Use Our NPS Calculator

Enter the number of survey responses in each group below. The calculator will instantly show your Net Promoter Score, category rating, and how you compare to other industries.

Input Mode: Pick "Simple Mode" to enter three group totals, or pick "Detailed Mode" to enter the exact count for each score from 0 to 10.

Promoters: Enter the number of people who gave a score of 9 or 10. These are your happiest customers who love your brand.

Passives: Enter the number of people who gave a score of 7 or 8. These customers are satisfied but could easily switch to a competitor.

Detractors: Enter the number of people who gave a score of 0 to 6. These are unhappy customers who may hurt your brand with bad reviews.

Scores 0–10 (Detailed Mode only): Enter the exact number of responses for each individual score. The calculator will sort them into Promoters, Passives, and Detractors for you.

Click Calculate to see your NPS score, a visual gauge, response breakdown, pie chart, bar chart, and industry benchmark comparison. Click Reset to clear all fields and start over.

What Is a Net Promoter Score (NPS)?

Net Promoter Score, or NPS, is a simple number that tells you how happy your customers are. It measures whether people would recommend your business to a friend. The score ranges from -100 to +100. A higher score means more customers love what you do. NPS is one of the most widely tracked business metrics, and when paired with financial indicators like your ROI or compound annual growth rate, it gives a comprehensive picture of business health.

How NPS Works

NPS is based on one question: "How likely are you to recommend us to a friend?" Customers answer on a scale from 0 to 10. Based on their answer, they fall into three groups:

Promoters (9–10): These are your biggest fans. They love your product and tell others about it.
Passives (7–8): These customers are satisfied but not excited. They could easily switch to a competitor.
Detractors (0–6): These are unhappy customers. They may leave bad reviews or warn others to stay away.

How to Calculate NPS

The formula is straightforward. Take the percentage of Promoters and subtract the percentage of Detractors. Passives are not included in the math, but they still count toward your total responses. If you need help working with percentages, our percentage calculator can assist.

NPS = % Promoters − % Detractors

For example, if 60% of your customers are Promoters and 20% are Detractors, your NPS is 40.

What Is a Good NPS?

Any score above 0 is considered positive because you have more Promoters than Detractors. Here is a general guide:

Below 0: Needs improvement. You have more unhappy customers than happy ones.
0 to 30: Good. You are heading in the right direction.
30 to 70: Great. Your customers are clearly happy with your business.
Above 70: Excellent. Very few companies reach this level.

Why NPS Matters for Your Business

NPS helps you understand customer loyalty at a glance. Businesses with high NPS scores tend to grow faster because happy customers come back and bring new ones. Tracking your NPS over time shows whether your customer experience is getting better or worse. It also lets you compare your performance against other companies in your industry. To understand the financial impact of customer loyalty, consider measuring the customer lifetime value of your Promoters versus your Detractors. You can also track your customer acquisition cost alongside NPS to see whether happy customers are reducing your spending on new customer growth.

Understanding NPS in the broader context of your finances is essential. Use a break even calculator to see how customer retention affects your profitability, or review your profit margins to understand the revenue impact of moving Detractors to Promoters. If your NPS reveals that customer satisfaction is driving strong growth, tools like our engagement rate calculator and CPM calculator can help you measure marketing efficiency as you scale. For a complete view of business performance, pair your NPS tracking with a net worth assessment and regular NPV analysis of your customer-focused investments.

Frequently asked questions

What is the difference between Simple Mode and Detailed Mode?

Simple Mode lets you enter three numbers: how many Promoters, Passives, and Detractors you have. Detailed Mode lets you type the exact count of responses for each score from 0 to 10. The calculator then sorts them into the three groups for you. Use Simple Mode if you already grouped your data. Use Detailed Mode if you have raw survey results.

Can my NPS be a negative number?

Yes. NPS ranges from -100 to +100. If you have more Detractors than Promoters, your score will be negative. For example, if 10% are Promoters and 50% are Detractors, your NPS is -40. A negative score means most of your customers are unhappy.

Why are Passives not included in the NPS formula?

Passives count toward your total number of responses, which affects the percentages. But the NPS formula only subtracts Detractor percentage from Promoter percentage. Passives are left out because they are neutral. They are not hurting or helping your score directly. However, a large number of Passives means you have many customers who could become Promoters or Detractors.

How many survey responses do I need for an accurate NPS?

There is no strict minimum, but most experts recommend at least 100 responses. With fewer responses, a single customer can swing your score a lot. The more responses you collect, the more reliable your NPS will be.

Does this calculator save my data?

No. All calculations happen in your browser. Nothing is sent to a server or stored anywhere. When you close the page, your data is gone. You can take a screenshot or copy the results if you want to keep them.

How often should I measure NPS?

Most businesses measure NPS every quarter or after key customer interactions like a purchase or support call. Measuring regularly helps you spot trends. If your score drops, you can act quickly. If it rises, you know your changes are working.

What do the industry benchmarks in the calculator mean?

The benchmarks show average NPS scores for different industries like technology, retail, and healthcare. They help you see how your score compares to similar businesses. A red marker shows where your NPS falls on each benchmark bar so you can quickly tell if you are above or below the industry average.

What does the gauge chart show?

The gauge is a color-coded bar that goes from -100 on the left to +100 on the right. A black marker shows where your NPS lands. Red means needs improvement, yellow means good, green means great, and purple means excellent. It gives you a quick visual of how strong your score is.

Can I use this calculator for employee NPS (eNPS)?

Yes. Employee NPS uses the same formula. Instead of asking customers, you ask employees how likely they are to recommend your company as a place to work. Enter the results the same way and the math works identically.

Why is someone who scores a 6 counted as a Detractor?

The NPS system was designed by Bain & Company. Their research found that only people who score 9 or 10 actively promote a brand. Scores of 7 and 8 show mild satisfaction. Anything from 0 to 6 signals some level of dissatisfaction, so those people are grouped as Detractors.

What is the score distribution bar chart in Detailed Mode?

When you use Detailed Mode, the calculator shows a bar chart with 11 bars, one for each score from 0 to 10. Each bar shows how many people gave that score. Bars are color-coded red for Detractors, yellow for Passives, and green for Promoters. This helps you see exactly where your responses cluster.

Can NPS be exactly 0?

Yes. An NPS of 0 means you have the same percentage of Promoters and Detractors. It is not a bad score, but it means your happy customers are just barely outweighing the unhappy ones. There is room to improve.

How do I improve a low NPS?

Start by talking to your Detractors to find out what went wrong. Fix the most common complaints. Then focus on turning Passives into Promoters by exceeding expectations. Small improvements in customer service, product quality, or response time can raise your NPS over time.