Free NPS Calculator

The Net Promoter Score (NPS) is a customer satisfaction metric that measures how willing your users are to recommend your product. This free Net Promoter Score Calculator (also referred to as a Promoter Score Calculator) computes the NPS instantly from your survey responses, applying the standard NPS Score Formula so you can focus on improving user loyalty rather than manual calculations.

What Is the Net Promoter Score?

NPS is built around a single question: “On a scale from 0 to 10, how likely are you to recommend our product to a friend or colleague?” Based on their answer, respondents fall into three groups:

• Promoters (9–10) – loyal enthusiasts who will keep buying and refer others.
• Passives (7–8) – satisfied but unenthusiastic customers who are vulnerable to competitive offers.
• Detractors (0–6) – unhappy customers who can damage your brand through negative word‑of‑mouth.

The final score is the difference between the percentage of Promoters and the percentage of Detractors, giving a value between –100 and +100.

How to Calculate NPS: Formula and Steps

Whether you compute the score by hand or with this Customer Satisfaction Calculator, the process follows the same structure.

The NPS Score Formula

$$\text{NPS} = \frac{\text{Number of Promoters} - \text{Number of Detractors}}{\text{Total Responses}} \times 100\%$$

Neutral Passives are not included in the formula – they neither help nor hurt the final score.

Step‑by‑Step Example

Imagine a product survey yields the following raw data:

Score	Responses
10	12
9	15
8	10
7	20
6	6
5	4
4	3
3	3
Total	73

1. Find the total number of responses – sum of all entries: 73.
2. Identify the three groups:
   • Promoters (scores 9 and 10): 12 + 15 = 27
   • Passives (scores 7 and 8): 10 + 20 = 30
   • Detractors (scores 0 through 6): 6 + 4 + 3 + 3 = 16
3. Apply the formula: $$\text{NPS} = \frac{27 - 16}{73} \times 100\% \approx 15\%$$

A score of +15 indicates that the company has more Promoters than Detractors, yet there remains room for improvement.

What Is a Good NPS?

There are two common ways to judge your NPS:

• Absolute method – any score below 0 is considered dangerous (more Detractors than Promoters). A positive score shows that promoters outnumber detractors, and a score above 30 is typically regarded as strong.
• Relative method – compare your score with industry benchmarks. An NPS that exceeds the average for your sector suggests that your product delivers better customer satisfaction than your competitors’ offerings.

Because NPS is a direct reflection of user loyalty, regularly tracking it with a dedicated Promoter Score Calculator helps you spot trends, measure the impact of product changes, and identify areas that need attention.