NPS calculator
Enter the number of promoters, passives, and detractors to calculate Net Promoter Score from -100 to 100. You will also see the response total and promoter-to-detractor mix.
Nothing you enter leaves your browser. The calculator does not save responses or contact details.
How the calculation works
What counts as a promoter, passive, or detractor?
NPS uses one 0 to 10 recommendation question. Scores of 9 or 10 are promoters, 7 or 8 are passives, and 0 through 6 are detractors. Passives count toward the response total but do not add to or subtract from the score.
A result of 40 can come from 60% promoters and 20% detractors, or 45% promoters and 5% detractors. Those response mixes need different follow-up even though the headline NPS is identical.
Use the score as a signal, not the diagnosis
The useful question is usually the follow-up: “What is the primary reason for your score?” Read those answers by segment and date instead of treating one company-wide number as a verdict.
You can start with the NPS survey form template, then use first-party form analytics to see whether people start and finish the survey.
NPS calculator questions
What is the NPS formula?
Subtract the percentage of detractors from the percentage of promoters. Passives remain in the total response count but do not directly change the score.
What range can an NPS score have?
Net Promoter Score ranges from -100, when every respondent is a detractor, to 100, when every respondent is a promoter.
Do passives count in NPS?
Yes. Passives are included in the denominator used to calculate the promoter and detractor percentages, but they are not added or subtracted directly.
Should NPS be shown as a percentage?
No. NPS is normally reported as a whole number without a percent sign, even though percentages are used inside the formula.
How often should I run an NPS survey?
Use a cadence that matches the customer relationship and gives the team time to act. Transactional over-surveying creates fatigue and makes the sample less representative.