NPS calculator
Paste your 0 to 10 answers or enter your counts. See your score, who's behind it, and what it means.
A column copied from a spreadsheet works too.
How do you calculate NPS?
The short answer: Net Promoter Score is the percentage of people who answer 9 or 10 minus the percentage who answer 0 to 6, when you ask how likely they are to recommend you. It runs from -100 to 100. Above 0 means more fans than critics, and above 50 is very good.
Each 0 to 10 answer goes into one group: 9 and 10 are promoters, 7 and 8 are passives, 0 to 6 are detractors. The score is promoters minus detractors, as percentages, rounded to a whole number. The margin of error is for 95% confidence. Nothing you type leaves your browser.
FAQ
How do you calculate NPS?
Take the share of people who answered 9 or 10 and subtract the share who answered 0 to 6. With 50 promoters, 30 passives and 20 detractors out of 100, the NPS is 50 minus 20, which is 30. Passives count toward the total but not the score.
What is a good NPS score?
Anything above 0 means you have more fans than critics. Above 30 is good, above 50 is very good, and above 70 is rare. Scores vary a lot by industry, so your own score over time tells you more than someone else's average.
Can NPS be negative?
Yes. It runs from -100, where everyone answered 0 to 6, to 100, where everyone answered 9 or 10. A negative score means more people would warn others off than recommend you.
How many responses do I need for a reliable NPS?
More than you might think. With 100 responses the score can easily be 10 to 15 points off, which is why this calculator shows a margin of error. If your score moves by less than that between two surveys, it may just be noise.
What question should I ask after the NPS question?
Ask "What's the main reason for your score?" as an open question. The number tells you how people feel. Their own words tell you why, and what to fix or keep.
Is what I paste sent anywhere?
No. The calculator runs in your browser and your numbers stay on your device.