Free NPS Calculator (Net Promoter Score)
Enter how many people gave each rating from 0 to 10 and get your Net Promoter Score, with the promoter, passive and detractor split.
- No sign-up
- Private, in your browser
- Unlimited use
Collect the answers in Tapzy. See the score live.
Start from a ready-made NPS template, share it by link or QR code, and the score, the promoter split and every comment update as answers arrive.
- Ready-made templates you can edit
- Share by link or QR code
- Results as live charts, no spreadsheet
How your Net Promoter Score is worked out.
People answer “How likely are you to recommend us to a friend or colleague?” from 0 to 10. Ratings of 9–10 are promoters, 7–8 are passives and 0–6 are detractors.
Passives count in the total but not in the score, so more passives pull both percentages down. The result is a score from −100 to +100, not a percentage.
A quick example
From 200 responses, 110 promoters (55%), 50 passives (25%) and 40 detractors (20%) give an NPS of 55 − 20 = 35.
Keep in mind
- Use the standard 0–10 question, worded the same way each time.
- Count each person once, and compare the same audience over the same kind of period.
- The score tells you how many people would recommend you, not why. Ask a follow-up question.
NPS groups at a glance
Every response falls into one of three groups. Only promoters and detractors move the score.
| Group | Ratings | Effect on the score |
|---|---|---|
| Promoters | 9–10 | Raise it |
| Passives | 7–8 | Counted in the total only |
| Detractors | 0–6 | Lower it |
Getting more out of NPS
- Report the count with the score.“NPS 35 from 200 responses” means more than “35” on its own, and it is never “35%”.
- Ask why.Add one open question after the rating, such as “What’s the main reason for your score?”.
- Keep surveys separate.A relationship survey every quarter and a survey after a support ticket measure different things. Track them apart.
- Close the loop.Follow up with detractors who agreed to be contacted, and look for themes in what promoters praise.
NPS Calculator questions
How do you calculate NPS?
Subtract the percentage of detractors (ratings 0–6) from the percentage of promoters (ratings 9–10). Passives (7–8) count in the total but not in the score. For example, 55% promoters and 20% detractors give an NPS of 35.
Is NPS a percentage?
No. NPS is a score from −100 to +100. Report it as “NPS 35”, not “35%”, and give the number of responses alongside it.
Do passives affect NPS?
Yes, indirectly. Passives are part of the total, so more passives lower both the promoter and detractor percentages, which pulls the score toward zero.
What is a good NPS?
Any score above 0 means you have more promoters than detractors. Scores vary a lot by industry and by how you ask, so the most useful comparison is your own NPS over time, asked the same way.
How many responses do I need?
More responses give a steadier score. With only a few dozen answers, a handful of people can move NPS by many points, so report the count and compare results of similar size.
Is my data private?
Yes. The score is worked out in your browser. Nothing you type is sent to Tapzy's servers.
More free tools
Collect the answers with Tapzy.
Start from a ready-made NPS, CSAT or feedback template, share it by link or QR code and see the results as charts. Free trial, no credit card.