Net Promoter Score Calculator
Calculate NPS from promoter, passive and detractor response counts with the response mix shown alongside the score.
Net Promoter ScoreExample45 pointspoints
- Promoters
- 60%
- Detractors
- 15%
- Valid responses
- 100 responses
How to calculate net promoter score
NPS = 100 × (promoters − detractors) ÷ all valid responses
NPS ranges from −100 to 100 points. Passives remain in the denominator. The result does not correct for sampling bias or report statistical uncertainty.
Worked example
An illustrative scenario. “Reset to example” restores it in the calculator.
- Promoters (ratings 9–10)
- 60 responses
- Passives (ratings 7–8)
- 25 responses
- Detractors (ratings 0–6)
- 15 responses
Net Promoter Score: 45 points
Net Promoter Score FAQ
Is NPS a percentage?
It is expressed as a score in points: the percentage of promoters minus the percentage of detractors. A score of 45 is not a 45% satisfaction rate.