Free NPS Calculator

Calculate a Net Promoter Score from counts or from raw 0-10 scores. Nothing is saved, and you do not need an account.

Scores 9–10

Scores 7–8

Scores 0–6

Net Promoter Score

Enter responses to see your score.

Score range is -100 to +100

Band labels are guidance for reading the number, not an industry standard.

Promoters
–
Passives
–
Detractors
–
Total responses
–

Collect real 0-10 scores with FormFlux's free NPS survey template.

What is NPS?

Net Promoter Score is a loyalty measure from one question: how likely someone is to recommend you, on a scale from 0 to 10.

People who answer 9 or 10 are promoters. People who answer 7 or 8 are passives. People who answer 0 to 6 are detractors. The score is the percentage of promoters minus the percentage of detractors.

How to use this calculator

  1. Choose Counts if you already know how many people fell into each group.
  2. Choose Raw scores if you have the individual 0-10 answers. Paste them separated by commas or new lines.
  3. Read the score, the three group percentages, and the guidance band. Copy the summary if you want to paste it elsewhere.

Formula

Total responses = Promoters + Passives + Detractors

% Promoters = Promoters / Total × 100

% Detractors = Detractors / Total × 100

NPS = % Promoters − % Detractors

Example: 60 promoters, 30 passives, and 10 detractors. Promoters are 60% and detractors are 10%, so the score is 50. Passives change the total, which changes both percentages.

How to run an NPS survey

Ask the 0-10 question, then an optional reason. Collect real 0-10 scores with FormFlux's free NPS survey template, then paste the answers back into this calculator.

Frequently asked questions

What is a good NPS?

These ranges are guidance, not a universal benchmark. Below 0 means more detractors than promoters. 0 to 30 is a modest positive score. Above 30 to 70 is a strong score. Above 70 is uncommon. Compare a new score with your own earlier surveys.

What is the difference between promoters, passives, and detractors?

Promoters scored 9 or 10. Passives scored 7 or 8. Detractors scored 0 to 6. Passives count in the total number of responses, but they are not added to or subtracted from the score.

Can NPS be negative?

Yes. When the share of detractors is higher than the share of promoters, the score is negative. The possible range is -100 to +100.

Is this NPS calculator free?

Yes. It runs in your browser and does not require an account. FormFlux's core form builder is free forever if you want to collect the scores yourself.

How do I collect the 0-10 scores?

Use FormFlux's free NPS survey template. It asks the standard recommendation question on a 0-10 scale, with an optional reason and email.

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