NPS Calculator
Enter your promoter, passive and detractor counts to get your Net Promoter Score and the share of each group.
- Free
- No sign-up to try
- Works as you type
Net Promoter Score
Net Promoter Score
42.5
Promoters
55.0%
Passives
32.5%
Detractors
12.5%
- NPS = % promoters − % detractors, out of all responses.
- Passives count in the total but not in the score.
- The score runs from −100 to +100.
Free, no sign-up to try. Save it as a live calculator you can share; an estimate from the numbers you enter, not financial advice. Check the result against your own records before you rely on it.
How it works
How the NPS Calculator works
- 1
Enter your numbers
Every result updates as you type, with the formula shown under it.
- 2
Check the method
See how each number is worked out and what it assumes.
- 3
Save it as a Room
Share a live calculator: others can change the numbers and see the result update.
Worked example
What it makes
Example inputs
- Promoters (scored 9 or 10)
- 220
- Passives (scored 7 or 8)
- 130
- Detractors (scored 0 to 6)
- 50
Results
- Net Promoter Score
- 42.5
- Promoters
- 55.0%
- Passives
- 32.5%
- Detractors
- 12.5%
How it's calculated
- NPS = % promoters − % detractors, out of all responses.
- Passives count in the total but not in the score.
- The score runs from −100 to +100.
- Assumes: Responses use the standard 0 to 10 'how likely are you to recommend' question.
An estimate from the numbers you enter, not financial advice. Check the result against your own records before you rely on it.
Who it's for
Who uses it
Customer success
Score each survey round the same way.
Product teams
Compare NPS before and after a release.
Founders
Share the score and its make-up with the team.
Good to know
What to consider
- Small samples swing a lot: a few responses can move NPS by ten points or more.
- The score hides why people answered as they did; read the comments too.
Questions
About the NPS Calculator
How is NPS calculated?
Ask how likely people are to recommend you on a 0 to 10 scale. 9 and 10 are promoters, 7 and 8 passives, 0 to 6 detractors. NPS = % promoters − % detractors, so it runs from −100 to +100.
Can I share the calculator with my team or a client?
Yes. The Room keeps the calculator live: anyone with the link can change the numbers and see the result update, with the method and assumptions on the same page.
Make your calculator now
Free, no sign-up to try. It becomes a Room you can edit, publish and share.
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