Net Promoter Score Calculator
The Net Promoter Score is a single number that summarises how likely customers are to recommend you. It is the percentage of promoters minus the percentage of detractors, and it ranges from minus one hundred to plus one hundred.
Net Promoter Score
40
- Promoter share
- 6000.00%
- Detractor share
- 2000.00%
- Total responses
- 100
Values update as you type. This calculator covers the single scenario its formula assumes — see Common Mistakes for what it leaves out.
The formula this calculator uses
NPS = % promoters - % detractors
- Promoters
- Respondents scoring 9 or 10
- Passives
- Respondents scoring 7 or 8
- Detractors
- Respondents scoring 0 to 6
How to check the result by hand
- 1
Count each group
Sort responses into promoters (9 or 10), passives (7 or 8) and detractors (0 to 6).
- 2
Total the responses
Add the three groups together. Passives stay in the total even though they do not move the score.
- 3
Find the promoter share
Divide the promoter count by the total and multiply by one hundred.
- 4
Find the detractor share
Divide the detractor count by the total and multiply by one hundred.
- 5
Subtract to get the score
Take the detractor share away from the promoter share. The result runs from minus one hundred to plus one hundred.
For worked examples, common mistakes and the limits of this formula, read the full How To Calculate Net Promoter Score page.