NPS Calculator

Work out your Net Promoter Score from survey responses, see the promoter, passive and detractor split, and how your score compares. Free, no sign-up.

How do you want to enter responses?
Your NPS
40
From 100 responses, on a scale of -100 to 100
Great
A clearly loyal customer base.
Detractors 20%Passives 20%Promoters 60%
Promoters
60
60%
Passives
20
20%
Detractors
20
20%

Free. No sign-up. Everything is calculated in your browser, nothing you enter is sent anywhere.

How it's calculated

Group each response
Promoters = 9 or 10 Passives = 7 or 8 Detractors = 0 to 6
Net Promoter Score
NPS = (Promoters / Total x 100) - (Detractors / Total x 100)
Example: 60 promoters, 20 passives and 20 detractors is 60% minus 20%, an NPS of 40.
Worked examples

NPS calculation examples

Four realistic survey results and what the numbers actually say.

Healthy SaaS product

A quarterly in-app survey with 500 responses.

300 promoters, 120 passives, 80 detractors.

60% promoters minus 16% detractors gives an NPS of 44. Comfortably in the "great" band for most software products.

Mixed feedback

A post-support survey after a rough product release.

90 promoters, 110 passives, 100 detractors.

30% promoters minus 33.3% detractors gives an NPS of -3.3. More people would warn others away than recommend you.

Passives don't count

Two surveys with the same promoters and detractors but more passives.

50 promoters, 0 passives, 50 detractors vs 50 promoters, 100 passives, 50 detractors.

Both score 0. Passives dilute the percentages but never add or subtract points, so the score only moves when people cross into promoter or detractor territory.

Small sample

A new product with only 20 responses.

11 promoters, 5 passives, 4 detractors.

NPS of 35. With 20 responses one person changing their answer swings the score by 5 points, so treat it as a direction, not a verdict.

Benchmarks

How to read your NPS

Common rules of thumb for interpreting a Net Promoter Score. Industry averages vary widely, so your own trend matters most.

01

Below 0: needs work

More customers would discourage others than recommend you. Start with the detractors' comments, they usually point to one or two fixable problems.

02

0 to 30: good

More promoters than detractors. Most companies sit somewhere in this range, and there is clear room to grow.

03

30 to 70: great

A clearly loyal customer base that actively recommends you. Holding this score is as important as raising it.

04

70 and above: excellent

Rare in most industries. These bands are general rules of thumb, so compare against your own past scores and your industry before celebrating.

FAQ

Questions people ask

More free tools

Fewer unanswered questions, fewer detractors.

Bund AI answers your customers on web chat and email in seconds, day or night, using your own help content, and hands anything tricky to your team with the full context. Quick, accurate answers are one lever you can pull today to move people out of the detractor column.

Get started with Bund AIHow it works