How is NPS calculated?

Take the percentage of promoters (scores of 9 or 10) and subtract the percentage of detractors (0 to 6). 50% promoters and 20% detractors is an NPS of 30.

From −100, when every customer is a detractor, to 100, when every customer is a promoter.

They count toward the total number of responses, but not toward the score itself.

Yes, with no sign-up. It runs in your browser, so nothing you type is sent to us.

Net Promoter Score (NPS) calculator

Enter how many customers were promoters, passives and detractors in your survey, and get your Net Promoter Score.

Promoters (scored 9 or 10)

Passives (scored 7 or 8)

Detractors (scored 0 to 6)

Net Promoter Score

Enter responses

NPS = % promoters − % detractors. Passives count toward the total but not the score, which runs from −100 to 100.

NPS calculation examples

How the score works out in practice. Enter your own survey results above.

A typical survey

200 responses: 110 promoters, 50 passives, 40 detractors. Promoters: 110 ÷ 200 = 55% Detractors: 40 ÷ 200 = 20% NPS = 55 − 20 = 35

A negative score

100 responses: 20 promoters, 30 passives, 50 detractors. NPS = 20% − 50% = −30

Why passives still matter

100 responses: 40 promoters, 50 passives, 10 detractors gives an NPS of 30. Move 20 passives to promoters and it becomes 60 − 10 = 50, without losing a single detractor.

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Questions, answered.

How is NPS calculated?: Take the percentage of promoters (scores of 9 or 10) and subtract the percentage of detractors (0 to 6). 50% promoters and 20% detractors is an NPS of 30.
What's the range?: From −100, when every customer is a detractor, to 100, when every customer is a promoter.
Do passives count?: They count toward the total number of responses, but not toward the score itself.
Is it free?: Yes, with no sign-up. It runs in your browser, so nothing you type is sent to us.

Detractors often had a question nobody answered.

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