NPS calculator

Count the responses

Add up the number of responses provided for each score.

Calculate your NPS

Subtract the percentage of Detractors from the percentage of Promoters.Start over
of total responses
of total responses
This is your NPS

If you collect customer feedback through NPS surveys, you may considerably benefit from an NPS calculator. This online tool eliminates the need to process survey results manually. Instead, you only need to enter the numbers to see what percentage of consumers will likely recommend your brand. A high indicator means you're doing a great job, while low rates show dissatisfaction.

What is an NPS Calculator?

An NPS calculator is a tool that turns NPS input into an NPS score in a fraction of a second. Net Promoter Score surveys look like a scale with numbers from 0 to 10. Zero means the customer would never say a good word about your company. Ten is for customers who enjoy interacting with you. Since there are many replies in between, calculation without specialized programs takes time. That's where the calculator comes in.

An NPS calculator is usually a separate website where you must paste details manually or an automated tool. Automated tools integrate with NPS survey software to instantly turn the collected data into valuable insights.

Why Use an NPS Calculator

NPS score is a convenient and easy way to know what your customers think about you. Since such surveys don't take much time to complete, people willingly participate. Using an NPS calculator, you also simplify feedback collection implementation for your marketing strategy.

Here're the main benefits:

  • No manual data processing. It allows you to speed up calculations and effortlessly track the changes in customer loyalty.
  • Reduced risk of human error since all you need to do is enter data.
  • Additional marketing and analytics feature to boost your business.

How Does an NPS Calculator Work?

Before using an NPS calculator, launch surveys on your website or app, there are dozens of solutions that support NPSs and allow implementation through quick integration.

After collecting data, summarize the responses to see how many 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 ratings you've got.

Afterward, it's necessary to group these numbers into detractors, passives, and promoter categories.

  • Detractors select the ratings between 0 and 6. These clients won't use your services again because of a poor experience.
  • Passives choose 7 or 8. They liked your brand but may still give preference to competitors next time if their offer is more attractive.
  • Promoters select a 9 or 10 rating. These are loyal customers that are ready to bring a friend.

Once you know the groups and add the responses for each score, enter this data into the web tool. It will immediately display the NPS score.

This method is super handy and requires minimum effort. You only need to sum up how many responders have selected each rating.

NPS Formula

If you prefer to calculate everything manually, apply the formula.

NPS = % of Promoters – % of Detractors % of Promoters = (Total Promoters / Total respondents) x 100% % of Detractor = (Total Detractors / Total respondents) x 100%

Suppose you have:

  • 70 customers giving 9 or 10 ratings (promoters)
  • 30 customers giving 7 or 8 ratings (passives)
  • 20 customers giving from 0 to 6 ratings (detractors)
It means 70/120 * 100% = 58.33% of promoters and 20/120 * 100% = 16.67% of detractors. Hence, the promoter score will be 41.67%.


An NPS calculator is essential for anyone who wants to quickly process surveys to measure customer satisfaction and loyalty. It's more accurate and faster than manual estimates, so you'd better get one now.

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