Free NPS Calculator: Turn Survey Replies Into a Loyalty Score

Enter your promoter, passive, and detractor counts, and get your Net Promoter Score in seconds, with context on what the number means.

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Free with a Brainito account. No credit card required.

NPS Calculator · example inputs

Example

Net Promoter Score

36

Ranges from -100 to +100

Promoters

54.5%

Detractors

18.2%

Total responses

220

Example result with sample data. Yours uses live data for your inputs.

How it works

From your numbers to a clear answer and what to change.

  1. Step 1

    Add your numbers

    Use your own figures or a realistic estimate.

  2. Step 2

    Get the result instantly

    The calculation and what it means, compared with a benchmark.

  3. Step 3

    Decide what to change

    See which number to move to hit your target.

What you get

What the result tells you, and why it is worth the minute it takes.

  • Accurate Score in Seconds

    Skip the spreadsheet and get a correctly weighted NPS straight from your raw response counts.

  • Understand the Number

    See how promoters, passives, and detractors each move your score and where to focus next.

  • Benchmark Your Progress

    Recalculate after every survey wave to track whether customer loyalty is climbing or slipping.

The guide

What the nps calculator does, how to use it, and what to do with the result.

An NPS calculator turns customer survey responses into a Net Promoter Score, the widely used measure of loyalty and satisfaction. Enter the percentage of promoters and detractors from your responses, and the tool returns a score from minus 100 to 100. That single number gives teams a fast, comparable read on how likely customers are to recommend your product or service to others.

How the Net Promoter Score Is Calculated

NPS comes from one question that asks how likely someone is to recommend you on a zero-to-ten scale. Respondents scoring nine or ten are promoters, seven or eight are passives, and zero through six are detractors. The score is simply the percentage of promoters minus the percentage of detractors, which is why passives do not appear directly in the formula. This calculator applies that subtraction for you and returns a figure between minus 100 and 100. Because the math is standardized, the value only means as much as your sample, so gather enough responses before reading too much into a single score.

How to Read and Improve Your NPS

A positive score means promoters outnumber detractors, but the raw number matters less than what drives it. The real value sits in the follow-up comments, where customers explain why they scored you as they did. Group that feedback into themes and fix the issues detractors raise most, then find what promoters love and do more of it. Closing the loop with unhappy respondents can convert them and lift future scores. Resurvey and recalculate with this tool on a regular cadence so you can tie product and service changes to movement in the number rather than reacting to one-off swings.

NPS Benchmarks and When to Use It

Net Promoter Score varies so much by industry that comparing yourself to an unrelated sector tells you little. Any positive score means goodwill outweighs frustration, and strong scores climb into the fifties or higher, but the most useful benchmark is your own trend over time. Send the survey at meaningful moments, such as after onboarding, a support interaction, or a renewal, to learn where loyalty is won or lost. Use this calculator whenever a survey closes, and pair the score with retention and referral data, since NPS predicts sentiment best when it lines up with what customers actually do.

Frequently asked questions

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How is NPS calculated?

Subtract the percentage of detractors, who score 0 to 6, from the percentage of promoters, who score 9 or 10. Passives at 7 or 8 count toward the total but not the score. Results range from minus 100 to plus 100.

What is a good NPS in 2026?

Anything above zero means you have more promoters than detractors. Scores above 30 are generally strong, and above 50 is excellent in most industries. The trend over time matters more than any single reading.

Is the NPS Calculator free?

Yes, it is free after creating a Brainito account. Score every survey wave you run, compare customer segments, and keep a consistent record of loyalty as it changes over time.

Where to go from here

The nps calculator answers one question. These are the next ones worth asking.

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Guides on this topic

Convert raw survey responses into a Net Promoter Score you can act on

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